"Lifetime expectations ?"
I think it has a shot of beating the PS4.... however probably not by much.
I voted 100-120m, but it might go abit over 120m tbh (if its gonna beat the PS4).
Im not super optimistic about PS5 yet (so voted conservatively) .... lets see where it is a year or two from now.
I'd be happy to be surprised, by it doing better than my expectations.
(ps4 fizzled out too early imo, sony could have pushed it harder, for more sales near the end of its cycle... but choose profit margins on hardware instead)