I traded a 15 inch silver aro this weekend for a 5" widebar. I got the silver for 20 bucks on Ebay (trouble with some tankmates), so I guess I got the dat for 20 dollars too. The guy in the store says the dat would go for 60.00 normally.
By the way, check out Rainbow Fish if you are ever in Wichita. They have some great stuff over there, aros, flowerhorns (their specialty), freshwater rays, etc.