I've been watching TOS reruns since I was a kid, I've seen everything from Wrath of Khan forward in the theater, and I've tried to watch all the TV shows -- even when they were bad. It's when they were morbidly shitty (Voyager, I'm looking at you) that I had to bail out. So...
Many of us bored fans were bored senseless with how Rick Berman and been trolling in circles with the Star Trek canon in the last several outings.
I had gotten to the point of not caring if this movie was any good or not, because the entire franchise had gotten so moldy and booring but now, having seen the movie, I believe that he dumped everything shitty. Everything I used to like in Star Trek is still there, just without the baggage.
Also, might not need to assume that the entire canon is gone. The details of it are no longer set in stone, so things might play out differently, but the same events can still take place. As a for instance, I'd LOVE to see Carol Marcus in the next one...