No one says you gotta play games coming out today.
If you only want to play single player, want it to be cheap, and have a great library of games to play.. .Pick up a used PS2 or Gamecube. PS2 lets you play both PS2 and PS1 games, gamecube..if you can find a gameboy adapter for it for cheap, also opens up gameboy/gameboycolor/gameboy advance games. real versatile.
Should be able to find one used online/garage sale/classified for cheap. games are abundant, cheap, and amazing.
anything older is starting to get expensive, and anything newer will typically be always online/online drm checks/etc.
Especially true with how AI is absolutely ruining hardware prices atm, with ram costing as much as goddamn video cards.
Course, thats assuming you want to play on the actual hardware, setting up a retropi for SNES/NES/Genesis/ETC is also viable, bit more fraut trying to find the roms nowadays, though. is the best, most affordable option if you want to play PS1 or older, though.
Zyklon-B, the pesticide used in the gas chambers, was still being manufactured, sold and used (for its intended pesticide usage) all the way up until the 2010s iirc.
and this was still under the Zyklon name.