Im not sure what you basing that number on. Ive eaten at Ducasse somewhere like 4-6 times and the cheapest, drinking wine by the glass, was $500 per person. According to Ducasse he aims for an average of $500 per person. Drinking wine by the bottle, with almost the cheapest wines on the list, so by no means the top is more like $600-$800 per person. Per Se is more. Ive also seen both Jean George and Le Bernardin go $400-$500 per person although that is with a little more expense on the wine than that price at Ducasse. Sushi at the bar with moderate amounts of house sake at Kyubei ran $250 per person. In Paris or London, anything with 3 or some with 2 stars will go over $300 and probably over $500 for dinner. Check the Michelin Guide for names. In addition to Gagnaire and Taillevant mentioned above I know L'Arpege will top that pretty easily. The price runs up pretty quickly when they start putting 200 year old vinegar on peaches for desert . Most recent for me was Le Jardin De Sens (probably misspelled, sorry) in Montpelier which was $300-$350 each and that is a two star now.