I know that feeling; I wasted most of the teenage years of my life playing first Simcity 4, Sid Meier's Alpha Centauri (the best turn based strategy game ever) and now Battlefield Bad Company 2. Games are addictive...
Sim City 5 come out next year. I'm going to end up losing my job, husband and kids. But I will finally complete my goal of building the entire continental United States.