That $2,000 bottle of wine cost the restaurant $500, tops.
If the image is the actual wine they were served you can find it online in many locations for less than $300 a bottle.
For what it’s worth, I have purchased and consumed a 1986 Lafite Rothschild and a 1999 Mouton Rothschild. Never again. In reality, I have found many dense red wines that I liked better for less than $15. Granted they do not store as long but when you find a good year and brand, you can get some really good wine without having to spend the bucks. Unfortunately, the year to year variations may make the search more than a few test bottles. When you find the right bottle, buy more.