I stopped in a Petco down near the University today and although the betta area seemed to be too close to the door for my taste, and it seemed to be a bit cool for them, most were in pretty good shape.
Then, as I started walking around looking at the other fish I see that they have written little notes on the fish tanks. Things like "We can get to be 8" long, a bigger tank is better. -Goldfish; We are territorial (or aggressive) -Cichlids; etc.
People will do what they're gonna do, but it was nice that they took the time to try and educate them.