Considering Nintendo selling very old games just emulated on their switch for almost full price I’d say people want both new games and their classics. The point is you don’t have to decide which games to get. I play Baldurs Gate 3 but also Age of Wonders 1 or the early Devil May Cry games. I can actually play the whole DMC series on one device while my PS5 is collecting dust as every game costs more there than on PC and I don’t have a big library of games.
Also I’d have to pay way too much money just to be allowed to play online on servers that Sony doesn’t even run. Over the span of 5-10 years I’d have to pay probably around 400-800€ just to play online.
I’m not 100% sure anymore but my pc with an AMD GPU and CPU cost me maybe 1300€ and runs everything i want on highest settings so far. I think the biggest price point on PC is people getting duped by sites like userbenchmark to think they need an Nvidia card that’s ridiculously expensive.
I’d say they’ve probably long reached the point where they have enough customers around the world to hold the load on their servers fairly constant. The example with one user only taking 5% of a servers load only works for low customer counts, similar to how you can’t count on one wind turbine or solar plant to provide all of your energy but if you have enough of them you can provide a base line of fairly constant energy