If you are a PC Gamer, I am sure you have seen the recent sale of Ubisoft titles which have been showing some promiceing offers out there. Unfortunetly for Valve, due to the complex mathmatical problems that they must use to decide how much to reduce items by, it has resulted in some games being reduced soo low, that it is cheaper to just buy them outright rather than get them in a bunde as outlined by PC gamer.
To find out more: http://www.pcgamer.com/ubisoft-steam-sale-leaves-bundles-costing-more-than-individual-games/