If you don't mind buying your PS3 games internationally (from what I can tell, they're region-free, correct?), Zavvi.com has De Blob 2 for around $16 after current conversion rates. International delivery is free. Zavvi is a good site - I've ordered CDs from them, and they've arrived relatively quickly and in perfect condition.
http://www.zavvi.com/games/platforms/ps3/de-blob-2/10208078.html
I think there might also be a 10% off code floating around. I'll take a look and post it if I find it.
Edit: The page now says "Usually dispatched within a month." So it looks like it might have gone out of stock.
http://www.zavvi.com/games/platforms/ps3/de-blob-2/10208078.html
I think there might also be a 10% off code floating around. I'll take a look and post it if I find it.
Edit: The page now says "Usually dispatched within a month." So it looks like it might have gone out of stock.