The next sale will be mid-summer, usually end of June-Early July. They try to have the sales coincide with School breaks for Christmas and Summer, as most of their customers are college kids. The summer sales are a bit more extravagant, where they'll have days dedicated solely to bundles (i.e. the Bioshock bundle this winter). It's also the time of year when Christmas releases and early-year releases are eligible for sale price drop, making the summer edition much better. Also, winter sales usually rehash alot of the sales from the last cycle, for example Sleeping Dogs, Skyrim, Civ V, etc.