Playing an RPG is a very 'internal-facing' activity: you're sitting around a table with friends and the attention should be focused on what is going on in the game. Playing in a fancy or distracting environment is actually detrimental to the fun I have in a game. So dining tables are actually a pretty good spot to play at.
That being said, there is something to be said for gaming in a private suite at a luxurious hotel, with staff available to cater to your needs. Where the hotel itself is located doesn't really matter for the game itself, but it might be a factor right after the game when you go out for a meal.