Burger aficionados on the East Coast may never be graced by the glory that is an In-N-Out burger (though to be fair, what the East Coast lacks in In-N-Out, they make up for in Shake Shack). The Double-Double is part of In-N-Out's "secret menu," but even they acknowledge that it's not exactly well-kept. With a burger that good, it's hard to keep it under wraps.
The East hears rumors and stories about the life-changing experience of trying In-N-Out for the first time, but never get a chance to try it for themselves. It's well worth the trip out to the West. The only problem is thinking up some excuse to fly out there, so it doesn't seem like you're taking a trip just to try a burger.