That seems about right, it was a nice bump over the PCGS AU details one. The real problem is just the type of buyers that can afford those coins. People that can afford to buy coins at that level like we buy far cheaper ones have the money for problem free examples for something that already has a small buying base to begin it.
Its one of those things that as soon as you buy it youll likely be underwater in it from day 1 so a significant discount for a details grade should be expected imo.