I told him that AOE3's Home Cities are a kind of deck you construct, or that it adds an element of persistence to the RTS. These aren't complete lies, they're even sort of true - but he wasn't swayed by my buzzword salvos. He was punished for it. Don't share his fate! Let me offer you the information to graze at your leisure: the most interesting piece I've read on Home Cities is here, at Gamespy.
