@Andrew *******
Let me try to explain. I think there are several reasons. The most obvious one is that he's nicely set up in BKK with a condo he loves and all the gear he needs to work. So every day away from that setup is just a loss financially and in comfort.
My personal issue is that I'm very picky with accommodation. I can either camp (requires lugging gear) or live in mold-free new buildings, preferably on a high floor. Booking a random hotel is very risky and stresses me out.
Thirdly, someone might really just have a quick business meeting and legitimate reasons to return the same day.