I bought power stone 2 on ebay and I got it yesterday, but the back insert is glued to the case and the manual looks to have water damage (its kinda wavey), but the disc is fine. I bought it for 24 bucks, I could get a refund for it but Is it still worth it even though its just the disc? I may be able to get a partial refund If i ask.

I tried looking at ended auctions on ebay for single discs only, but I get mixed results.