What's the most expensive restaurant you have been to?

It was at a hotel. It was a Masonic dinner (what we call the festive board) after the meeting in the lodge room. It was £80. It did include a three-course meal with champagne before dinner, a different wine with each course, as well as a glass of port, so it's not surprising really. It was a ridiculous amount of money to spend though and I had too much to drink. I did enjoy myself.