Warnings from the government and from independent groups have prompted people to start looking for discount treadmills and home exercise machines. 4) Buy in bulk when you buy from bulk sources instead of from retailers, there is a huge chance that you will be able to get huge discounts on treadmills and home exercise machines. Endurance is not the only thing developed by the treadmill. The treadmill is used to observe exactly what happens to an athlete when he or she reaches the point when he or she does not think that they can run anymore.