Some treadmills fold up for storage, but if you have to do is browse around the internet, find the merchandise you want, click, and the cardio exercise equipment to buy, seeking out the best price, purchasing and installing the equipment in their home... most people just don't have enough self control to use the home exercise equipment . When looking for an elliptical trainer, whenever possible opt for a rear drive system rather than a front drive system. Rear drive machines are far sturdier, more reliable, and provide a smoother motion for the user. The resistance system will vary according to price, with the least expensive models using a motorized brake system, and the most sophisticated high-end models employing an eddy current brake system. Stride length is another important thing to keep in mind, because different people have different natural strides. Look for an elliptical trainer, whenever possible opt for a rear drive system rather than a front drive system. Rear drive machines are far sturdier, more reliable, and provide a smoother motion for the user. The resistance