This sounds like what a lot of my friends do. They go and let this place test out new drugs on them so they can make a few hundred bucks. It's not exactly my cup of tea, plus with wanting to maintain first class medical privileges, I'd rather just work to earn the money.
I've heard stories that this place paid a guy $1,000,000 to stop his heart so they could restart it again. I doubt it's true, but if it is, that's some pretty Frankensteiny kinda stuff.