Some people seem to think Vanquish's gameplay systems are tied to the 30fps limit it has on consoles. I'd still buy the gooseberry fool out of it regardless. Not a very long game, but it's strawberry floating awesome the whole way through.
Heads up. Alan Wake will soon be unavailable and won't be sold anymore (across all systems) due to some copyright expiration for music used in the game. There's going to be a 90% off 48 hour sale for both games inc DLC on Steam from 13th-15th May. American Nightmare won't be affected and will continue to stay on sale, it's just the first game. So pick it up while you can.
Think I'll get this if just a couple of quid. Quite a few years since I played this on the 360 and still haven't spent any of my £20 Steam credit I got for Christmas (mainly because keys are always cheaper elsewhere).