Here's a hypothetical scenario for you. Let's say you come across a dealer who is selling 1910-1919 wheat cents for $0.25 each and in bulk for $0.20 each. He has about 50 of them. You get home, search through them, and find that about 40 of them are one of two years and the other 10 are different dates. It's not the best selection in the world but at $0.20 each it's a good deal nonetheless. With the above, if the lot was described simply as "1910-1919 wheat cents", what would your review be? Take into context that at $0.20 each, the earliest mintmarked coins would be from 1916 or 1917. Based on a recent experience of mine as a dealer.
My review would be a positive one. It sounds like what I would expect to get in that lot, for the most part. There's certainly nothing inaccurate about it.
As someone who has both sold and purchased mixed date rolls I'm more inclined to believe that most people seeing the date range wouldn't be happy getting a roll that's ultra heavy in one or two dates. Personally when I see that kind of listing I hope to get a good representation of the full range of dates, not just a smattering and mostly one or two years.
