Whether you were there from the beginning in 1966 or found Star Trek
some time in the '70s (or before we got films and TNG) it was a likely a pretty special time: discovering Star Trek
when it was pretty much the only game around.
There was other sci-fi, of course, on film and television, but for a lot of us most of it paled in comparison to TOS, For myself, at the time, about the only thing I could enjoy (almost) as much as TOS was UFO.
As the '70s progressed and I became more aware I started to appreciate other things, but back then TOS ruled.
The first merchandise I remember that fuelled my interest (besides reruns) were the early AMT model kits and the James Blish adaptations. Not long after I got into TAS and the Alan Dean Foster Star Trek Log
adaptations as well as some of the first original novels. The Making Of Star Trek
was like a bible to me. And soon Franz Joseph's Booklet Of General Plans
and Star Fleet Technical Manua
l and Bjo Trimble's Star Trek Concordance
were added to my small library. Additionally I drew like crazy: lots of starships and other stuff.
Being a Star Trek
fan then you could get labelled and teased (to put it kindly) but, man, it was still a great time and a helluva lot of fun.