Where to find/buy Silent Hill (PS1)?

I've been looking for quite some time, and can't find this game anywhere. Does anyone know any wholesale sites, or sites that sell old/classic games where I could find this? (If possible, preferably not eBay or Amazon). Thanks alot. 

Well there is tons of copies on eBay after one quick search.

also although Silent Hill is my favorite game, and I don't condone piracy, there's more then ample torrents of the game itself.