Cutting to the quick with the question. How many games can you comfortable play in, in a week?
For a while I was in a Monday Night GURPS game and a Wednesday night Weird Adventures game. That was pushing it for me. I loved playing both games. We tried to make a hard deadline for quitting time, but once you get jazzed up from the game that time seems to slide on you. So the late nights were tough. Early mornings, difficult work makes for a very tired worker.
Currently I'm just with the Monday GURPS group. Ken is purposing a Blood & Treasure RPG dungeon crawl type campaign. He would like to do it once a month. I'd love that. And I'm always interested in getting in on a casual weekend game, but would prefer to play on an actually table top. With real dice. Real miniatures. I miss that.