Another beer worth aging is Great Divide Brewery's Old Ruffian. 90 IBU's should allow it to age gracefully and the malty presence is fantastic straight out of the bottle.
Not too spendy either... maybe 6 or 7 bucks for a bomber.
In Process: Mango Beer, Homebrewers Pale Ale
Bottled/Kegged:Spicy Light Rye, Rice-adjunct Pale Ale, Mild Bourbon Porter, Roasty Stout, Basic Light Mead, Bourbon County Stout Clone
Up Next: Berlinerweiss, Chocolate Raspberry Ale, and American IPA