Well, I cannot speak for every base, but as for me I live in Las Vegas and commute to Williston. Williston is a unique oil boom town and housing is hard to come by, but people have crash pads everywhere I would guess. Up here we've made sure nobody is on the street and I imagine the attitude is the same everywhere else. A place is something that just seems to settle into place. Between studying, indoc, systems, and sim, being a new hire has so much more troubles than housing at your base once you get there.