tank size?

[ptbmaniac]

I posted before that I was thinking about a 20gal Long,but after actually looking at one I'm not really sure.They don't really look that big.They are kind of skinny.People seem to think that they are a perfect size for a Garter snake though.I was looking at a 30 gallon breeder.It's wider and seems better.But the 20L is $35 and the 30 breeder is $73.I Really didn't want to spend that much on a tank.I would like opinions on tank size.Pictures would be cool too.