Special themed restaurants and hotel rooms do exist. They are uncommon, however.
A RuneScape-themed restaurant might sound like a great idea. In fact, I would be tasting some of the dishes that come from the game. The problem is, will the RuneScape fanbase patronise the place? What about ex-RuneScape players or people who do not know about the game?
Themed hotel rooms dedicated to the history of companies such as Fujitsu and Panasonic sound like a great idea. However, such hotel rooms would cater more to business people. But I feel that hotel rooms dedicated to the histories of Fujitsu and Panasonic should also have the video game consoles from these two companies. If I were to stay in a Fujitsu-themed hotel room, I would like to try out the Fujitsu FM Towns Marty. In the case of a Panasonic-themed hotel room, I would be hoping to try out a Panasonic 3DO.
Despite all the problems faced by special themed restaurants and hotel rooms, these places are here to stay as long as they have paying customers.
