Considering how little PS and XB have talked about the sales of their premium consoles, I'm thinking they must not view them as successful. At least, not big successes. If they though they were, they'd certainly proclaim it loudly to us.
On a personal level, I liked the idea when we first heard about it, and even through the launch of the systems. But, in hindsight, I think I'd prefer that the generations be shorter (maybe 6 years rather than 7) than we get a small bump in the middle and have to wait 7-8 years for the new generation to start. With that said, I think I'll be starting the new generation with an XB (I have two more years on my GP subscription, so I think XB makes more sense for my first purchase), so I'll be watching closely to see whether it makes sense to wait for an upgraded PS5. If it doesn't look like one is coming, I'll probably buy a regular PS5 within 2 years of launch.
Now that I think about it, the fact that I'm sitting an waiting on possible future information, rather than buying a PS5 sooner, is probably a big negative for mid-gen upgrades from a business point of view.
They talked on the first year or 2, and after that we got some snippets of Japan and NPD info, for all we know the midgen are at least 20% of the total sold for those platforms, that seem relevant hw sales.
duduspace11 "Well, since we are estimating costs, Pokemon Red/Blue did cost Nintendo about $50m to make back in 1996"
Mr Puggsly: "Hehe, I said good profit. You said big profit. Frankly, not losing money is what I meant by good. Don't get hung up on semantics"
Azzanation: "PS5 wouldn't sold out at launch without scalpers."