And If I had them raw I doubt I'd send them in figuring the centering was too far off to get a really high grade.
Agreed about the 4 vs 200+ that should keep the pricing separated. The amount the 9s have closed the gap is fairly small, 1/50th of a 10 then and 1/39th now unless the 33K doesn't include the bp. I'll have to remember to check again in a month or two to see if 9s have come up any.
I wrote a paper in college about something similar, back then coin pricing for gold coins that weren't special was done by the spot price, which many dealers got from a hobby paper. Laziness being what it is, most wouldn't reprice their inventory for a while. The paper proposed profiting off the lag time in pricing, when things went up there was at least a week or two of lag before the dealers raised the price, and when it went down there was the same lag. Potentially like having a crystal ball for someone focused and active with some bankroll. The prof didn't understand it, but gave me a B based on the length of the paper. "It could be genius, or it could be the worst idea ever. But I can't understand it well enough to tell. so you get a B because it's about as long as a B paper."

Nice having an economics prof who had a degree from behind the iron curtain.
Steve B