There's basically Star Trek, which was dead in 2009, and JJ's Star Trek, which we have now and is thriving. I can get ST nerds hating these films and thinking they're a bastardization of ST, but they're (those ST zealots) basically irrelevent now - with ST2009 the franchise was ripped out of the fanboys hands and given to the masses. Since I belong to the group that couldn't stomach the old ST, this pleases me.
ST2009 was basically the best Star Wars movie since ESB.
Hmmmm. It's kind of shaky.
I didn't become a more involved fan of Star Trek until after watching through The Next Generation and Deep Space Nine. When I saw ST 2009, I was an extremely casual fan of TNG but that was it. I thought it was an alright movie; nothing bad, nothing great, just serving as a framework for a new series of movies. Solid action, but I'm never big on origin movies that have to get everything established really quickly so that the plot can be resolved in a two-hour span.
It's a bit extreme to call ST 2009 a "bastardization." I think only the most extreme fans thought of it that way. Even the best of the Star Trek shows had moments where they put aside the technobabble and went full-on with action.
It's okay that you couldn't "stomach" old ST (which is, I guess, anything before ST 2009?). But I will say that, for those of use who could "stomach" old ST to the point of heavily enjoying it, saw more in the series than just the geeky superficial layer. The first Star Trek show I watched all the way through was Deep Space Nine, and I absolutely loved it. I often refer to that show as the "Star Trek show for people who aren't sure if they like Star Trek." Yeah, it's still a Sci-Fi show that geeks will love but there's a lot of aspects that are deeper than the "geekiness." Enjoyable characters, meaningful plots that are often philosophical in nature, having a solid emotional core at times, etc. There was a lot to it.
TNG was similar in many ways, often serving as a "space soap opera with sci-fi elements." Not devoid of good action or suspense though, depending on the episode. Not many fans even enjoyed the TNG movies; it was mostly because these movies were just kind of stupid in the sense of plot, but also because they put the emphasis on action when that's not necessarily what Star Trek is about.
So, with the "new Trek" that started with ST 2009, you get a lot of people saying "I didn't like old Trek but now they're catering more to what I like; fun, action-packed summer blockbuster movies." Yeah, that's right, now ST is being catered to the masses, which is actually kind of great since it means the franchise will get more mainstream exposure. But, acting like fan skepticism is unwarranted is a bit silly when you consider that Star Trek's layers have basically been stripped away so that it can be "stomached" by the general populace. While these new movies are unique because of the franchise they're attached to, the presentation is not really unique; again, it feels like "summer blockbuster + Star Trek" rather than being a true Star Trek production, and thus feels cheapened overall. It may still be enjoyable to fans of old and new alike (I wasn't thrilled by the trailer but I'm still looking forward to the movie), but it should be completely understandable if old fans come off as a bit stubborn. It's not really about being a "zealout," it's just about questioning the goodness of a product that's been stripped of its prior meaning.
In the end, it isn't so simple as "haha fanboys and geeks, your thing is now my thing and you have to deal with it."
All this said, ST 2009 was definitely the best Star Wars movie since ESB. I actually have a soft spot for RotJ though, so maybe that one is arguable. The prequels are horrible excuses for movies, Star Wars or not, so it's not hard to surpass them and I'd happy take "new Trek" over "new Star Wars."