What with all the Black Friday and Cyber Monday sales, this one almost got by us. The Playstation Network is having a "Stock Up for Winter" sale, extending through Monday, November 29. The titles included in the sale are going for 50% off regular price. Only two co-op games are on the list. For the PS3, Deathspank is available for $7.49. For those who prefer their co-op in the handheld fashion, Metal Gear Solid Peace Walker for the PSP is a mere $19.99. Check out the non-co-op deals at the link below.