John Levine wrote:

Yet here in the United States, when prices for airline travel and hotel
rooms are stated, they included taxes. In Europe, travel prices are
more often stated without all taxes included.

Airline prices are quoted with tax because there is an FTC rule that
says they have
to do that. They decided, quite reasonably, that quoting the price
without the tax
is misleading.

The rule isn't quite that simple, they're apparently allowed to quote
the fake price
so long as the real price is in tiny print nearby.

It's not an FTC rule. It's a US DOT rule, according to several news articles
I've read. No, it is NOT acceptable to list the price, net of taxes and
fees, in large type, with the total price in small type. The new rule
on advertising total prices including taxes and fees takes effect on the 26th.

I cannot find anything similar for hotel quotes, though.