Well, I don't think that most people here keep bettas in little bowls, but I would say that most bettas are kept that way. When you look at how they're kept in large stores (WalMart, Petco, Petsmart, etc.) and add the fact that these stores often openly display "Species Profiles" that state keeping bettas this way is perfectly acceptable, then I would say that most are kept like that. Most lfs (at least around where I live) also don't seem to have a problem with selling people bettas and tiny bowls to keep them in...If I came across as implying that I think it's ok to keep these fish in tiny bowls, that wasn't my intention at all.