And another plus is that you get to play the games as bug free as they‘ll get AND at higher framerates assuming your hardware improved in the meantime. I certainly wouldn‘t have been able to get the high fidelity DOOM 2016 experience I can get now (at a high framerate) way back when it released.

Downside is that if there‘s any multiplayer component to a game, it‘s probably pretty damn dead years later. But first, I personally don‘t care much about that anymore and second, games bleed the majority of their playerbase within months anyway so it‘s whatever.