"What is this 'Fifth Edition' of which you speak?"
I still run a D&D game because the RPG Police haven't shown up to seize my 3.5e stuff, because I could find players, and because I managed to start a long-running "Brotherhood of Rangers" campaign under 3.5e that has caught fire with the players.
A quirk that might help or hurt is distance; we only get together for a long session once or twice a year. (And no, an on-line 'virtual' table top is not an option. I'm an old rebel against the Old School in many ways, but I'm still enough of a grognard to insist on in-person play with an actual physical table-top and actual physical dice.)