Hmm, what I was trying to say, was that if enough people insisted on 1000 baht as maximum, that would remain the norm. On the other hand, if enough people feel that any amount is OK, than that too will become the norm. If anyone asks more, just laugh, and say 1000 is the limit. Get your friends to do the same.
I don't fit into this discussion too well, but I would never, under any circumstances, no matter what, go over 1000. Never have, never will. If one person won't accept 1000, there are many more who gladly will, and most of the time they've been wonderful people. I don't post here much, but I've read a lot over the years, and been there more than enough times to know what's going on. Go read "Money Number One", which will change your entire outlook on things.