you guys.. think about this.. if someone had servere nerve damage like Isits mention, you really think he'll care about climbing a 7 mile hill? even if its a one mile hill.. i highly doubt, anyone whoses in need of an assistance would go out of their way to climb a hill.. you guys just have to understand it from the other point of view. yea, it ways a lot, but it has its purpose, and it does its job well. hell sure a fat lazy ass could use it, but you know? its better then nothing..