Depending on the hotel, the decor needs to inspire certain feelings and owners would benefit greatly from hanging appropriate hotel paintings on the walls. What they strive to do is to warm up the rooms and lobby, while keeping it classy and sophisticated. Hotel photographs are a great way of achieving that and by choosing this sort of artwork, you hit two birds with one stone. On one hand, you avoid leaving walls barren, on the other you can complement existing decor in an inexpensive manner.
It is entirely up to prospective customers to choose replicas of famous paintings for hotel artwork, or focus on contemporary paintings.