I've been wondering how a franchise with such a large following could be booted off TV back in 2005.
Do you guys think commercialization had something to do with it?
I can remember as a teenager during the 1990s, I was a huge fan of Star Trek, but I can also remember being turned off by the fact that DS9 was a "non-exploration" show and I remember watching the first season of Voyager and then losing track of it.
I never got into Enterprise, even though I tried watching an epiosde here and there.
But I also remember being routinely pissed off with Rick Berman and company because I percevied the TNG movies as too safe, and I felt maybe too much commercialization was turning fans away?
Is there a consensus on what caused the franchise fatigue?
My experience since I began interacting with fans of ST in 2009 is that there is never a consensus. There will be the segment that is certain it was 'this thing' that was the cause. There will be the segment that is certain it was 'that thing' that was the cause. There will be the segment that...... etc.
I perceived the TNG movies as ones I enjoyed more, ones I enjoyed less.
And I am part of the segment that hypothesizes franchise fatigue does not exist.
I know lots of Real Time ST watchers of every incarnation series & movie as they aired who indicate getting tired of series & movies doesn't compute with them. They watched everything ST on TV and every movie at the theater. They had interest, the shows matched their Taste, they had Time, and Life wasn't intruding enough to effect the watching.
I personally know many Real Time ST watchers of every incarnation who simply say they liked 'X' or 'Y' series but Life distracted them with necessary other things during the time it aired and they missed most of it, but if Life hadn't interfered they would have. But did watch the other series they could, and saw all or most of the movies.
I know a couple of people in Real Time who did not watch a particular series because it wasn't what they liked. But watched most or all of the other series and all the movies.
My Real Time perception is that franchise fatigue has never been a factor. That it is Taste, Time, & Life circumstances instead.
I devoured
Star Trek on TV and would 'not' have watched
NextGen because I had no interest in a ST show w/out Kirk/Bones/Spock. But my friends were going to watch the premier episode... so I did too. And immediately found for me ST was more a concept than a particular cast of characters. For the next seven years I devoured
NextGeneration.
Life was going on Big Time and I totally missed DS9 as it aired. Had no idea it even existed. Had no idea
Nemesis even existed until years later. Life intrusions.
Was still busy with Life when I casually heard about
Voyager, and passed on it.
I certainly wasn't experiencing franchise fatigue because my last dedicated watching was years past with
NextGen. And movies only come every few years so there was no franchise fatigue there. It was Life intruding on my discretionary time
In 2000 Life provided me with Time, and being home at 9:00pm weeknights provided me an introduction to
Voyager reruns.
Bells clanged, lights flashed, fireworks went off... and I DEVOURED
Voyager five nights a week even while I watched season seven as it aired.
Life provided me Time and Taste provided me the interest in watching it. Which proves to me that if Life had given me Time I would have watched
Voyager every single week for seven years as it aired because it matches my Taste of what I want from ST.
When
Enterprise came Life presented me with enough Time to watch. I was dedicated into the second season but began to find it not to my taste with the Xindi thing and the "Continued next week" and "Last time on
Enterprise" thing. And the seasonal cliff hangers. Not my taste. I stopped watching. Not from franchise fatigue but from personal Taste.
When I discovered DS9 on VHS Life provided me with Time and I watched every episode, but found it was wayyy not my Taste. It was the wars and Cardasians that were not to my taste. So it was a few years before I watched any episodes again. But not franchise fatigue.... personal Taste.
I later watched
Enterprise on DVDs, which gets me passed the distasteful "Continued next week" factor because I could watch the "Last time on
Enterprise" immediately. The Xindi thing was more tolerable because I could get through it faster so it wasn't the long and boring story to me.
Which allowed me to have lots of positive experiences with it so I like it now. But I did not watch it on TV as it aired because it didn't fit my Taste in that TV format.
Then I got the DS9 DVDs, and things changed for me there too. I didn't have to watch the long and boring war if I didn't want to. I could watch a Jadzia episode or a Bashir episode... or even better... A GARAK EPISODE! And slowly the more I found I could like the more I developed appreciation for the parts I had previously disliked. But I would never have been interested in watching it as a weekly TV show. Taste.
So my take on franchise fatigue is that it doesn't exist. People will watch what they like if there is Time in their lives to watch it. Taste, Time, & Life intrusions are the mitigating factors to me.
And with StarTrek 'age' gives or takes away Time, e.g., dating, work, retired, still in K-12, family raising, no social network, extensive social network, etc.
Personal taste in the viewer's vision of what they enjoy & want from StarTrek lends interest or lack there-of.
Life adds family illness or problems, financial difficulties, working two or three jobs, too busy, etc.
Nope, I do not nor do my Real Time ST watcher friends perceive that franchise fatigue exists. Blaming this is simplistic to me and factors out everything else that comes into play when watching/not watching something.
Law&Order has been airing in one series or several simultaneously for 15 straight years. Each in simultaneous re-runs nearly that long too.
Stargate aired for 13 straight yearswith two series overlapping for three years, and years of re-runs and movies and videos going on at the same time between them.
NCIS has been airing for 12 straight years so far with sometimes three series running simultaneously. And they also run heavy in re-runs simultaneously.
CSI has been airing for 15 straight years so far with sometimes three series running simultaneously, and a new one is getting ready to start in March. Without even going into how many re-runs of all the series run simultaneously now.
Supernatural has been airing for 10 straight years so far, with re-runs going all the time.
Bones has been airing for 10 straight years so far, with re-runs going all the time.
These seem to me to be reasonable evidence that lends support to this hypothesis.

Anyway, that's my experience. Me and my friends I mean.
There is a tendency I think to look at ST decline in isolation (i.e, it was a TV only thing.) But the 1990s also marked the introduction of some serious competition for one's discretionary time. Don't forget, that decade saw the introduction of the Web, the mainstreaming of PC games, and the advent of modern gaming consoles.
Right! Those ARE very strong factors!