I was always one of the "I want to be an astronaut when I grow up" kids, but then I got older and realized there's a bit more involved with it than what I thought as a kid. :P
I mean if we ever get to the point where the average person can just go to space on a whim without breaking the bank, then yeah. $250k is still pretty far beyond what I'd consider "affordable" though.
Absolutely not. As fun as it would be to experience zero gravity for a bit, if I had 250k to burn on a day trip above the atmosphere I'd rather just give it to charity.