I think it is also a question of time and prestige. Many feel that cutting the grass is just an unpleasant and time consuming chore. (I don't, but that's me). A riding mower is a great deal faster than a push mower. And then there is the prestige angle. I have a friend that lives in an older part of the city of Toronto. He has a lawn which is only about 35 by 30 in front, and 40 by 50 in back. He keeps telling me he wants a riding mower. Just so he could leave the garage door open, so people could see it!