it's not 250 euros a plate, it's 250 euros for a complete menu with wines and about 15 courses. Compared to other this class restaurants it's dirt cheap.
250EU for a whole tasting menu is not dirt cheap. For less than $370 you can get the tour menu at Alinea with wine pairings, and Alinea is in the top 5 in the states. For $250 you can get the tasting menu at The Fat Duck, which is the second best restaurant in the world.
FYI, el bulli is #1 restaurant in the world, fat duck is the second. And afaik fat duck is much more expensive if you include wines.
The important thing here is wines because yes you can find menu for that price but wine list that is meant to go hand in hand with the menu usually doubles the price.