Meglo,
I did exactly that with Dom2. The early portion of a game takes little time so you joint many. Then when you need to spend an hour on your turn (to do it properly) having 8 games all at 24 hour host (or where everyone elses turn is in) become a lot to manage.
I'm in 3 games now (although... I'm about finished in Graemes EA). Its just when I want to play I WANT to play.