That's a great price for a D Grade. Even better because of it being a rare commemorative edition. The guy that was just on here a day or so ago looking for 1/3000, D & F grades should be all over this!
4painter,cabela's,gunbroker,gunsamerica,etc., check daily, more D's seen than F's, since msrp's on newer,(recent mfg.guns), F's approached if not exceeded $10,000.00 (non gold), gold added F's added another ?$$$? depending on what was added order wise in gold, in catalog ads. by custom shop orders only when 1100's last put in print in yearly catalog's in this nature. Most current catalog is not that specific on what can actually be ordered thru custom shop, model wise, etc., must contact to find out what's available.
They circle this website like hyenas. Then you'll see the same item on ebay or gunbroker for a rather large profit. For some folks this is their job. They take advantage of people that don't know what they have. Wait a minute isn't that called "Capitalism".