1) The book is several years old.
2) The price has fallen drasticly since many turned up.
3) The seller knows the correct price and is intentionally quoting one he knows is wrong
4) James himself would not be happy if he knew someone was using his priceguide in that way.

There is no purpose in quoting those prices other than to mislead buyers. If is was someone who did not know, thats one thing.... BUT THIS SELLER KNOWS, and choses to misrepresent.