Ideally, you have to release a console the year there's a die shrink available so you maximize performance for cost and longevity (as well as having a noticeable improvement over any competitor that might have released earlier). The PS5 and the XBX would have benefited nothing from delaying a year, it should have been two or nil in this case.
The PS3, on the other hand, would have gained hugely from waiting 9-12 months and going to the 65 nm node and unified GPU architecture. Also much cheaper Blu-ray drives, too. The opposite would apply to the GameCube, since it could have been released earlier with the same specs and better compete with the PS2.







