rebounder

Hi all, I'm considering getting a rebounder to modify some of the higher-impact moves in Cathe's floor workouts (for some plyo moves and the like). For those of you who do this, do you consider the rebounder adds a lot of value to your workout experience? Do you get as good a workout as if...

I am interested in purchasing a rebounder for my DH. He is dealing with a herniated disc in his neck and hasn't been able to run (his favorite mode of exercise) in over 2 months. Some of you may recall that he hiked the Appalachian Trail last summer in only 92 days? I think his heavy pack took a...