It's all a matter of perspective, what you like and what you enjoy. A lot will depend on your set up as well, VHS probably looks more then acceptable on a HD TV, and if you are not a picture critic don't become one, trust me you don't want to go down that road.
Once you move into 55" 4k territory even DVD starts looking blurry and crap. Last night I was watching TNG in bed on a 40" HDTV and decided to see what Voyager looked like on it, the colours were horrible, the resolution so low it looked blurry.
At the end of the day it's what you enjoy that's most important. Fans like me are always going to wish for the best, regardless of whether something is feasible, viable or economical.
Seeing those few clips of DS9 in WWLB just wet the appetit.