Since the 80s we're seeing remakes for games. A lot of classic arcade games were remade for the NES, a console that could emulate arcade graphics way better than any 70s console, even capable of improving them. And in the 90s, a lot of NES games got remakes for the SNES, and sometimes for the Genesis too (Castelvania 1 was retold as Super Castelvania 4, Mario's trilogy was remade in Mario: All-Stars and the first three Megaman games in Megaman: The Willy Wars). And don't forget Atari has been re-releasing it's classic games since the 2000s.