My uncle bred guppies (I'm honestly not sure if he sold them or not), and when I was 7, my birthday present from him and my parents was a 20 gallon tank. We set it up with livebearers and neons and a pleco (i.e. other).
I'm actually surprised that so many people started with fair goldfish. I don't think I've ever had one... but I spent my childhood in a big city, so I don't think I ever went to a fair until I was old enough not to be hooked on taking a goldfish home. It's kind of cool, though, that so many fish addicts are born of fair fish. At least something good is coming from their poor conditions at fairs.
--And, Navyscuba, that first tank of mine was 22 years ago, now. You're not that old.
