I saw one of the movies... they were so long! The only games I've ever seen (people much better than me or any of my friends, that is) end in ~10-12 minutes at most. I agree with sapphire: where were the reavers? And when the terran guy (for a brief bit) had a ridiculous army when compared to the protoss one, why didn't he attack? When he had two expansions and the protoss guy only had one, for a few minutes he had a *much* stronger army... but he forwent attacking, and the protoss player instead managed to take 4 bases in that time.
It was a really passive game, until everything exploded in the mid-game... I just didn't get it.
I did the same as you, just single player and LAN. For some reason, no one can ever join my games on BNet. Computer or network or something don't like it. We had a lot of fun (at college) doing one use map settings one, though, where you had unlimited minerals... but they were capped at 50. So you would build one thing, but then have to wait a second or two until it recharged to use more. As your kill-count rose, that cap rose with it, and you could upgrade all your guys up until level 50, rather than 3. You had to harvest your own vespiene, though. To counter, it was everyone against one computer, and the computer was absolutely insane. We played with 4-5 people, one of whom is borderlining-professional himself, and we still only beat the thing 2-3 times. It remains my favorite variant, though.
There are some people around here who play, but I don't think it's as many as you'd expect. Latro is really into it, though... and he's quite good (but not ridiculous or anything) too.