Can you a keep hotel bathrobe?

Whether you may keep the bathrobe, or not, depends on the category and the room price you have booked. Almost every luxurious hotel has rooms both for the "mainstream customers" and their so called "VIP customers", that stay in their suites, eventually enjoy their breakfast in their VIP Lounge isolated from the "crowd" and do probably even have a separate pool for only themselves. When staying in such a premiumly priced room, you may as well presume, that you can keep the bathrobe while leaving. Otherwise, the hotel management would charge you the bathrobe price to your credit card, you have had provided while checking-in.