Dunno. I can get a "steak" around here for 120 baht.
I could get a reasonable steak for 1000 baht in many restaurants, or I could get a bloody good steak in a few places for closer to 10,000 baht.
Cheap, or going price does not necessarily equal good.
Maybe the guy likes a girl to shit on his chest while she whistles the horst wessel lied and is happy to pay for that.