There's a lot of talk these days about the hamburgers in Manhattan out-pricing each other, but why hop a plane to taste the Big Apple's beef when we've got a perfectly elegant version right here in Denver -- and for less than $10? The Kobe beef burger at Opal -- which uses shoulder-cut American Wagyu rather than the purebred, pampered Japanese Kobe -- is served blood-warm, with only red-leaf lettuce on the soft roll to accompany the rich, fatty, roundly flavored meat. No matter how you cut it, it's the juiciest thing we've encountered between two buns.