As Elizabeth observed a few days ago, there are certain pleasures to being 80. Even if you haven't gotten a shiny drop from a raid or a heroic yet, or finished grinding your way to exalted with a Wrath faction, you have one thing that absolutely no one can take away from you: an ever-increasing chance to leave classic and Burning Crusade-level mobs swinging fruitlessly at the air, completely unable to hit you.
Just writing that gives me a disturbingly evil smile, because one of the things I've enjoyed most since hitting 80 is soloing heroic Sethekk in pursuit of the Raven Lord mount. Hi there, Syth. Remember the days when you used to mop the floor with my furry ass? I do, and this dish of revenge is being served to you at the proper temperature, courtesy of the frigid Northrend climate. How does it feel to be killed just because you're on the way to something bigger?