I used to have some when I was a kid, but I put them all into a bigger tank to see if they would fight each other. They didn't. But one of the bigger fish came along and ate them all. Wasn't planning on that one, but ah well.
i had a betta a while ago.. smart, pretty and cheap fish, they have personalities! kept me company while at the desk.
they're not like goldfish that just swim around aimlessly.. bettas are scheming, they watch you, they know when you pick up the food container. damn i want another one.