I use a rower exclusively. But I'm old and married so I don't need pythons to score hotties. Its a good workout pre dawn before I start my day. Keeps me fit enough to chase and coach the kiddos, ride, foot, ski and golf..all I need. I have a tramp too but I'm to chicken to get on it. That's for the kids.
Works for me. I still ride my longboard to the grocery store a few nights a week. Does that count?