I like the original for its camp and innovation.
And anyone who wants to dispute the original series' quality special effects, take a look at Battlestar Galactica. Star Trek TOS ran from 1966 to 1969. The original BSG ran from 1978 to 1980. Frankly, the special effects used in both are hardly any different in quality, and BSG only had improvements because of effects borrowed from Star Wars (ANH - 1977).
The Next Generation certainly wasn't the pinnacle of amazing special effects in its first few seasons either. I believe CGI wasn't even a factor in most episodes of the first few seasons of TNG.
To make matters worse, TNG, DS9 and several episodes of other Trek series borrowed plots from TOS and its movies. Sure the stories weren't very well-told, nor the special effects superbly-executed, but just about any documentary on the original Trek will tell you why. The original show actually had a fairly limited budget compared to other series of the time. I believe Bonanza (1961-1972) even had a better budget than Star Trek.
So before you go dismissing the original Trek as boring and lame, think about how much the newer ones had to work with compared to the original. Writer experience, audience acceptance of the genre, technological advances, budget increases, and a familiarity with the name. And frankly, Voyager and Enterprise bored the shit out of me. DS9 began feeling like a Babylon 5 ripoff very quickly after the first couple seasons.
TNG is my personal favorite, but frankly, I think the original is still awesome.
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