I recently sold a bunch of 40% halves for $2.50 each and a few 90% halves (Kens) for $6.00 each.
I guess I could have done better on the 90% halves, but my buy price was $2 on the 40% halves and $5 on the 90% halves, so better to turn my money around quickly. I generally collect (meaning I keep one of everything in the best condition I have) rather than stack, so selling off the extras defrays the cost of my hobby/habit.
I'd venture a guess that that is one of the highest paying dealers in the country. Back when silver was in the $30's my LCS was paying 8X face for 90%.