I'd pay full retail for this. No lie. This game stands against most new age games with ease. I've played through the first and second encounter roughly 5 a piece, mostly on co-op. That game is just unbelievably fun. Who cares if it's just a slightly prettier version, it's Serious Sam. The only game to come close is probably Painkiller. Oh, and the final levels are undoubtedly some of the most memorable in any game I can think of.