Since I live in the Bay Area, why the hell not? There might not be another My Little Pony brony convention here for a while once it's over. Might as well. BABASCon sounds like fun. I'm a little too late for registration, so I'll just show up and see for myself. I'm anxious but confident, I've never been to a convention before, but I generally know what to expect from enough video of cons.
It's quite a shame, I'm going by myself. I rarely hang out with my friends, besides they're not brony's to any degree. Hell, I have not met a single brony in real life since becoming one myself over two years ago. That's largely due to my introverted artistic nature.
I'm going to take a lot of photos, as many as I'm allowed. Granted I'm only going Saturday, I will most likely have my camera in front of my face most of the time. Given that I'm more of a photographer than a digital artist (which is just a hobby), it's what I do.
This is still a 99% decision.