What should be the cap on burger prices?

• Posh Stuff Online
• Le Burger Extravagant at Serendipity 3.

The burger is the rare diner staple that has managed to plant its flag squarely on fine-dining menus. The ingredients just get fancier. The beef cows are fed grass. The cheese is from cows that go to private schools. And the toppings are a study in supply side economics.

I enjoy burgers on all parts of the spectrum. Whether it’s grease or aioli dripping down my fingers, a proper burger is often the easy choice on a menu. Still, there has to be a limit to the insanity. For National Burger Month, Serendity 3 in New York City has created Le Burger Extravagant, which is now the Guinness Book of World Records’ most expensive burger at $295. It’s Wagyu beef topped with white truffle butter, shaved black truffles, caviar and a fried quail egg held together by a gold- and diamond-encrusted toothpick.

My instinct is that if it costs more than $25, a restaurant might as well be giving you a steak. What’s a reasonable cap on burgers?