This is the problem with manufacturers trying to force "generations" and beat the competition to the punch. Everything gets staggered and no-one actually sits in a position of power for long at all.
Would PSNeo owners rush out to buy a xbox 2 a year after for the sake of owning the most powerful console? or would they just wait 2 years and buy the PS5 that will be more powerful than the xbox 2?
More likely, especially if being in an ecosystem really is a thing for console gamers.
It will become even harder to abandon your friendlist, trophies AND library.
MS needs more than sheer power to get people onboard.