Motorized TM machines a waste let it be 10k or 40k, they give you a false feeling of exercise, run 1km on it and 1km on open air u will know the difference.
Amit I suggest invest on good pair of shoes and a gps phone ( i use xperia x10 mini) and go for run in open it is far better, if u want to workout in closed then go for cross trainer or stationary cycle (spinning)
I am sure you might even get lucky....