For me it was 1991, $2.50 a night, and no Four Seasons or any hotel for that matter were even on the Island.
Pool at Four Seasons, Koh Samui, Thailand
tedr says: In 1996 I stayed in a 1 room hut on the beach for $5 night. No pool or AC, but it was glorious. Doesn’t mean I don’t want to enjoy the Four Seasons on day tho ;)