Walking is for sissies.

Real men dig holes in roads to keep fit, or they play rugby. They certainly don't walk around the block.

Walking is for women, and arty people.
I suppose it's okay to walk if you're exercising a dog - as long as you walk directly to and from a park. Tramping is okay if you're going into the bush to shoot something. Otherwise it's pointless and the money spent on boots is wasted.