Good place to buy PS1 Games

[raginranger]

Hello all,

I am trying to use the backwards compatibility on my PS3 and want to play the original Tony Hawk for ps1. I know the graphics are so bad compared to what we have now, but it was one of my favorite games of all time. I regrettably no longer have the game but would like to purchase it again. I have checked my usual places of purchase (eb games and amazon) and neither carry the game. I don't think either still carry any PS1 games actually. I was wondering if anyone knows of a website that sells old video games??

any help would be appreciated

thanks