At Iron American, we got tired of seeing these poorly designed tall racks on wheels constantly being tipped over because they were too top heavy. In addition, many ropes, bands, and dip belts on these other racks got tangled every time you needed something which caused even more frustration and the occasional tipping of the entire unit. Not to mention the absurd price point of some of these "rack on wheels" made things only that much more demoralizing.