Ask HN: Would you buy a pedal power device

It seems everyone is jumping on the standing desk option and although I like the idea, I also think moving to the next step (exercise while working) seems more logical.

I came across http://www.k-tor.com/pedal-powered-generator/ which allows you to pedal and generate power and plug in things (laptop, phone, etc).

If this device had a better design (light/easy to move but also sturdy) and maybe integrated into a system like Fitbit (social competition, who generated the most power, etc.) and maybe was $99 rather than $195 - ... so Would you buy it?