The only place you have a chance of finding it cheap is high street game shops, where it will be at a reasonable market price. The problem this has is that it will more than likely take a bloody age until you finally find it. People on ebay and Amazon typically think that an old game is worth millions of pounds, because they are stupid.

Either way, you're risking losing a lot of your time or a lot of your money if you end up still hating it!