I've been meaning to reply to this, as this type of discussion comes up frequently.
The reality is there is a market for these ladies. If there wasn't, they wouldn't visit... But they do, any many keep coming back, so there must be a market.
Sometimes tours get canceled, and that's fine - but they aren't "missing out," they're going somewhere else that's more profitable.
It's a business with different customer segments, and providers and clients are free to conduct themselves however they wish. But it's not constructive to lament higher rates and say "there isn't a market" when there clearly is.