Riding into work today, I noted an old guy on a huge trike which seemed to me to be built on a Goldwing at great expense. I understand these things can cost $50k or even more if you include the hapless donor bike. I've heard that many men who get what they consider too old for riding conventional bikes turn to trikes. As far as I can see, the only difference or advantage of a trike is that you don't need to foot down at a stop. Is that really all there is? How decrepit a rider must be to not be able to put a foot down especially considering that many of these older guys like cruisers which have seats as low as 26" (65 cm). I have a hard time believing that anybody who has the endurance to ride (and isn't missing a leg, etc.) would find spending the money for a trike not to say the loss of enjoyment worth the bother yet these things abound. Do these things exist really and solely so one doesn't need to foot down at a stop?