Well we have Buzzfest twice a year and I always go to that. It's usually 14 bands, noon-midnight. It's awesome! The concert usually sells out 30K tickets in about 15 minutes.
So I go to that twice a year, spring and fall. Then it's whatever from there. If there is a concert worth going to then I'll go. I go to a lot of random concerts because my friend's uncle is the GM of the VIP club inside the Woodlands Pavillion which is like 5 minutes from my house. Plus that is my (and almost everyone else as well) favorite concert venue in Houston.