Reply #59: Why pay 'em? People pay to go...

[TreasonousBastard]

to gyms and for all sorts of workout tapes and equipment and diet plans.

Sold properly, this could be a monumental moneymaker from both sides-- charge people to walk the treadmills like all gyms do and then sell the electricity they generate.

Seriously, though, it would probably be difficult to actually coordinate "treadill farms" into the grid, but home exercise equipment that generates electricity already exists and really should be expanded.