yeah i think that's a big part of it, but i also think that people try to live too much in categories. i posted this on another thread somewhere, but what really staggers me is how many people drive to work and work out at night on a treadmill. nothing against treadmills or anything, but if you can bring yourself to run on the spot for 20 virtual kilometers in your spare time, doesn't commuting seem like a great, timesaving idea? instead of paying $40 a month to work out on a treadmill, and another $40 a month on gas commuting (at least $40), why not leave the car at home now and then? it's not like people don't like getting excercising, but they somehow want excercise to be its own thing in its own place and they don't want it mixed in with the other parts of their day.