I love Civ V, but I wonder if this is going to start getting too complex but after adding religion and spies, I started playing less. I'll prob. get this expansion anyhow because I appreciate the work they put in and enjoy the new Civs....plus you can always turn off religion and esp. in the game settings.
In our mid 30's and living 45 minutes apart, this is the only game my friends and I will actually get together and lug computers to one house for a night of drinking and Civ. It plays so much better in person, especially when we take a smoke break and yap about what's going on in the game and try to bluff about how great we're each doing. I don't think we've yet completed a game....it gets to a point where it's 3 AM and there's an obvious winner.