Because its a very niche thing, usually only manic fragrance lovers or perfume stores will buy. Also I believe he has it published privately, it takes a lot of work??? It is on his own website but you have to pay to join. To be honest I have no idea why QVC thought it was a good idea to stock it.
I buy Lucia Turin's usually which are much cheaper, no photos thought and the opinions of him and his wife only. Some I agree with others, no.