A workday lunch that lasts as long as a transcontinental flight is an impossibility for all but the most pliant and footloose of food tourists. To get in the game, you need a thick wallet, an adventurous palate, and a whole lot of time.
The last thing businessmen want to do is sit in a room filled with other businessmen. A room full of money is a pretty boring sight - unless it's yours, of course.