I spend 5 weeks in the Virgin Islands a couple of summers ago staying at an "eco-friendly" resort (simply meaning we stayed in fancy tents). It was basically a camp built in dense jungle type woods with decks and stairs leading down to the ocean. The mosquitoes were ferocious. Aside from my wife and I, most of the people there were hippy types, and of course, none of them came prepared with a thermocell. I got it out when we were all sitting on a deck one night, and ten minutes later I could have auctioned it off for hundreds. My wife wouldn't let me sell it.