I feel that my choice to hang was based alot on my position of sleeping. Laying on your side on the ground is always terrible, unless you bring a full-on air mattress. This was not possible because I backpack much more often than car camp. My hammock is light, small to carry, no fear of water, and can sleep in any position comfortably. I think the reason why more people don't hang is simply contempt prior to investigation. Because once you try a hammock, why go back to being a ground dweller?