But at what cost? Or waiting until 2023?
More is more but imo that is way too much. 8GB was awesome this gen, it was always a field in which consoles were significantly lagging behind PC, actually the 8GB came pretty late in the PS4 design. As for memory it fluctuates lets say often and enough to expect significant fluctuation throughout a console life cycle.
It is a little like FLOPS when this gen started even PS4 level of performance was not on the radar of most members who were day dreaming high p level of FLOPS disregarding power consumption, etc.
I think Sony should keep designing its system rationally, not subsidizing, the more you give the more some people expect out of rationality. The rational behind 4GB for the PS4 was lear, it is enough and we can have an UMA delivering enough bandwidth. As things evolved (and competition got known) it was simply wroth to deprive them from any selling point on raw hardware provess (yet I think the PS4 would have been fine and Sony would have fight a little more on price).
In that context the PS4 Pro, which Sony acknowledged having though about all along, made even more sense and that system would have gone with 8GB no matter what.
Imho companies have to get out a little of social media and "managing" (or so they think) people expectations, they are feeding an ever growing Leviathan that swallow whole whatever you throw at it and keep asking for more no matter what.
I hope the XB1X does not sell to well (good start) so it injects rationality back into some executives heads, simply put we can't keep going (gaming and on a more general manner) entering dick contest at any costs, without actual strategic thinking and a mid/long term vision and pretend it is a good business practice, we can afford to have crazy giants killing good practices and competitions on such premises, not too mention hiding the economics (but also the world) fundamentals to the People. As for MSFT they created imho a piece of kit that could prove a significant hurdle for them to overcome: one year late, tough to get something much better, costly, significant development costs, etc. Imho MSFT possible salvation was a "better", a more significant redesign of the XB1S. and fight Sony on price (hardware and subscription price and benefits). They would have left their options open to react to Sony next move which is a comfortable market leader which has never been under pressure to down price its system aggressively this gen and that even in MSFT strong market. Now they have a one year buffer (if Sony aggressively move to another system stinking to incremental upgrade that are in -line with process as well as AMD tech availability), and they are fighting with a performance advantage and also 25% price desadvantage against Sony offer.