If jallengomez's sales pitch was 1926s and 1955 showing (55 DDO???) I don't think I need to repeat myself at this point....
If someone is putting together wheat rolls, it would only take about 10 minutes to list what's actually going in to the roll. So the argument that he/she might not be searching for certain particular coins is mute. Give the buyer the information about what he/she is buying. If the seller actually acquired some rolls already put together, there shouldn't be a problem either. He can open it, list what's inside and then put them back together.
I like rolls and collect OBW rolls of solid date coins. I just think they are cool, and if I bought a roll with BU 1943d cents on the ends in an OBW and opened it to find a bunch of commons I would be HOT. About 6 years ago when I got back into coin collecting I started roll searching with my then 5 year old nephew, he liked the wheats and Canadians calling them old uns and queen heads. When the '09 Lincolns came out he was hooked with shiney new designs and a different one every few months. I had the bright idea of getting on eBay and buying some unsearched wheat rolls for us to open, what an eye opener. I had never bought any coins online although I had been an eBay member since '95. I made the assumption that coin sellers on eBay were just as honest as the other people I had done business with, I found out different and quickly. I bought us 5 rolls for about $40 knowing finding a true rarity wouldn't be likely just becuase of the math involved I never realized you get that many damaged,verdigred, rusty coins in a roll let alone a couple from the '80s that managed to be in there. I considered it a lesson learned and have since found CT and gained a lot of info on eBay. There are honest sellers and buyer be ware is still good advice but unsearched rolls aren't even a crap shoot they are just crap.