Of course for many items the advertised price will simply increase to the true price, as some advertised prices are unsustainable without the hidden fees. That

Of course for many items the advertised price will simply increase to the true price, as some advertised prices are unsustainable without the hidden fees. That alone is a big win for consumers because they won't have to waste time finding out what the real price is. It probably will bring some prices down though, by making comparison shopping easier, and by preventing some sales where the customer would have accepted the fee after getting partway through the buying process, but would have rejected the true price up front.