3 reasons,
extremely rare, out of print(for years), hard to find....
It's a great book with interesting insight on the up and coming players of the day. The first bio is a VERY YOUNG Ronnie Allen. It's pretty hard to find in good condition because not many have survived. This is a nice example, and with the dust cover, makes it even nicer.
I have a copy that I had ronnie allen sign on the picture in his bio.
I think your price is fair for one in this condition( I think I paid more for mine
)
good luck with the sale