Upgrading isn't really any option. I'm staying with my parents through college but my room is only 10' buy 10'. XDI like the idea of getting two young BP's and when they get large then upgrade to a larger tank. But I think if it were me I'd go get me two oranda goldfish, they have about the same personality as the BP's. With orandas you have more options with pattern/color variations. They are oh so fun!
I haven't heard as much about goldies having as much personality. Do they really have as much?