i have 4 of these right now, only 3 of them in their coffin. it is a hell of a smoke, that is for sure! the last 3 inches are excellent.
i know they retail for $50 new, but with up to 5+ years of age would most likely be worth more to an opus fan. i have seen them sell for as much as $100 a piece on auctions. i would think a nice compromise of $75 for a well aged big ass opus would be a fair market value

in my opinion though, opus do not get better with age. i have had some that are 5-6 years old, and they are much more mellow. i personally have liked opus that were between 6 months and a year old best. good luck with this!
jimmy