I am sorting things out, should I go with batocera on a used 100€ PS4Pro, or should I get me some PC Hardware?
selm Depends on the type of games you are planning to play. Check Batocera's system requirements to understand a bit better. If you can find a good deal on an integrated APU, like Ryzen 4650G or 5700G, I guess that'd be better than the PS4 Pro.
I plan to play Systems up to 6th Generation: Sony PlayStation 2, Microsoft Xbox, Nintendo Gamecube, Sega Dreamcast. I can get me a PS4Pro cheap for around 100€. Do you think a PC can compete in this low price segment?
selm In the current state then, go for a basic APU PC.