It depends. Often I will have a a period of marathon Civ games, then other things will distract me. But so far I have always come back to to lead the Romans, or Germans, or Mongols to world conquest so it does have a kind of timeless appeal.
I'm writing this post because I want you guys who post in the strategy section to check out the general section and my topic "a fun that never grows old".
I only posted this topic in strategy because i am not sure if you guys really visit the
general section that often, and i wanted the strategy poster's opinion too!