A buddy of mine recently gave me a couple sticks that he had bought in the 80s. Excellent flavor, very well aged, but the vitamin N was near zero.

Paul Garmirian, a botique in McLean, VA, ages his cigars 5-7 years (some longer) b/f selling. They are quite nice, but a little pricey, so they're special occasion sticks for me. He says he has a warehouse "near the airport" (Dulles) where he ages them in a temp/RH controlled environment. It would be cool to visit that some day but I can see why they might want to keep the location a secret.