@Autonomous - That was the target demo qualification that I made up off the cuff. Generally speaking, I haven't seen many people over 30, with kids, or married, signing up for a seasons-long camping situation. Younger people are more willing to tolerate high-distraction high-interruption close quarters, sharing bathrooms with non-family adults, have less to lose by sequestration from family, and can risk skipping a day job for a few seasons. my thinking, anyway.