Yes ! Icon is right .
The management knows they have a quite few Non-Thai Asian customers who like this place ( I am not one of them )
If they are tourists from richer countries , I guess 400 Bhats IS NOT expensive at all to them .
How much you have to pay to entre ONE SEVEN or TOWEL CLUB in Singapore ( You know how much you pay at 24 KAIKAN in Japna , Icon ? )
I mean they will still get ( what they think ) UNWANTED customers , anyway .
Malaysia's sauna door charges are as cheap as in Thailand .
But I have never paid higher entrance charge than local Malaysians at any saunas I visited , even if I am older than average or I am an alien .