..dunno really, I honestly just enjoy the time to myself after dealing with other people and work all day.
Shirley on another thread said she enjoys going to shopping malls to relax/destress and I guess the gym has become that for me since I got too old for regular football. The endorphin high at the end is great but so is the time to think or just blare Zombie Nation on your iPod while working out. Try and view it as a few hours a week that you're spoiling yourself.
Sorry if this just sounds like claptrap to you..