That very clearly describes the problem with so many of these places. I prefer to see the bright side, because the more tourists who cram themselves into these places, the better life is for those of us in the less touristy areas. And if a lot of people keep saying "Paris is beautiful but it is so expensive!" maybe things will settle down one day.
And if La Samaritaine finally goes out of business, it will be the perfect location for a new museum.