My local store had a basket full of £1 PS2 games. The ones of note were Mr Bean and Championship Snooker 2006. Each will get you £6 exchange at gamestation (if there is a local cex). Others not that great exchange wise but things like Brian Lara cricket and others I cant remember.
May have been local clearance but great! I bought 2 of each and got £24 from £4 spend! :)