In addition to learning the expected things, I'm learning how many organizations are in need of qualified medical technicians, key word being "qualified". Everyone from NERT/CERT, search and rescue groups and schools to private corporations with facilities of any size and a staff or patrons to protect may, or at least should, be looking for certified first responders for their team. Even if the primary "job" has nothing to do with EMS, it's never a bad idea to have pre-hospital care professionals around.
There are endless lists of opportunities open to motivated individuals willing to go after them and all of them have an array of payoffs that go far beyond the obvious. Considering that at one time or another all of us will have an opportunity to save a life, possibly our own or that of a loved one, we should also all be trained to do so.