I see USD85 or GBP65 for the book. I understand it sounds expensive when you're looking at a mass produced, probably low quality, maybe printed in China book, like one of those $200 or even $400 textbooks.

But $85 for this doesn't feel expensive at all, specially with paper price/availability in the last 5 or so years:

  220 pages
  129 image plates
  9.5 × 11.5"
  24.1 × 29.2 cm
  CMYK + 5 Pantone® spot colors
  Stochastic screen
  100 gsm Yupo Original and Perigord Matte 135 gsm papers
  Case-bound with two-color silkscreen and soft touch lamination
  Individually packaged in static shielding pouch
  Printed in Italy