The Mars mission may want some just volunteers (although you probably have to have at least some skill/value other than just being a body taking up space, oxygen and food) because it'll likely be a one way trip for the first 20 or so years after the first landings.
Personally, I'm really excited that we're finally back on track towards moving out into space. We've wasted way too many years doing very little in the realm of human space exploration. I want a Star Trek kind of future for mankind!