6. Backward Compatibility
Neither the Xbox One or PlayStation 4 will play current generation games. The advancement in technology means PS3 and Xbox 360 titles have to be completely re-coded to allow this to happen, and while admittedly the majority of games worth having will be on the PS4 some day, that's still quite some way off. Those of you who buy your PS3 games as digital downloads may have already realised these cannot be traded in and, dependent upon how much you have invested in your online gaming library, may find that it simply isn't viable to trade your console in for a new one quite yet. GTA V, for example, will not be on the PS4 or Xbox One and as such cannot be played on a next generation machine, which makes us wonder if it's worth buying a next gen machine until it can.