I was after a couple but they all went for above GPA....
I don't subscribe to GPA - are there enough sales for an average to be useful for precode horror?
On certain classic or icon books, yes. Granted, a few sales that should be there are missing (not Clink ones) but by and large it's a useful tool.
I wouldn't've been concerned if a book I was after went say 10 - 25% over GPA (as these things don't come along too often), but last night the two books I wanted were about 60 - 75% above well before auction end.