At Marshall University, the medical school fee for both the med students and forensic science students was about $2,600 for in-state and $4,200 for out of state. I imagine some of this cost went into allowing the med students to dissect the cadavers. The forensic science students didn't take gross anatomy (but I would have if I had the chance) so basically we were paying the fee under false pretext (because the med students would eventually be making much more than we would in forensic science so the fee wasn't really justified). Of course, the cadavers are mostly people who donate their bodies to science. So the answer to your question is yes, a real body would cost much less than $10,000...