The expense probably wouldn't matter if they kept weren't so short sighted on it.

Like, they are trying to just outright remove disc ports on their consoles when adding full generation backwards compatibility for all discs would instantly see a huge spike in sales. That alone is what kept Xbox One alive through the PS4's dominance.

Those little features outside pure exclusive AAA games are what sold consoles through PS2-onward, and they seem to not have ever realized that.