Of course, and by the time you come to look at the book price, it may well have moved on from there.
That said, much as I would absolutely covet a small date 1877 in AF, I wouldn't pay $15k for one. So that was a decent sale you got there, Bob. There is a certain cache attached to a small date 1877. Obviously there are other varieties within specific dates, which are just as rare, but which wouldn't fetch anywhere near what a Freeman 90 would attract. I suppose they are so instantly recognisable.
I do take Pete's point about the 1912H - even in BU, £2k is absurdly expensive, as they are not actually that rare.