If I had one of these I would get no exercise at all.  I could just cruise around with my camera looking for things to photograph.  But, thinking about it, I would probably make a camera mount for the cart so that I could mount a heavy long focal length zoom lens on the camera.  Maybe I could put a remotely controlled mount on top with a tethered screen on the dash and a remote trigger.  At the minimum, I could put an action video camera on a head mount and record videos as I cruised along.  Hmmm, someday?