I work in the printing industry currently. A book such as this which has to take into consideration impeccable color accuracy (most likely using a Pantone print

I work in the printing industry currently. A book such as this which has to take into consideration impeccable color accuracy (most likely using a Pantone printing process), high-quality photo printing, hard-covered, and bound to last a long time can absolutely be VERY expensive to produce, especially if they are not being produced at a factory-level scale and are viewed as collectibles.