Eek ook!

) I just looked it up at Book Depository, and it seems to be priced at
AU $67 or
AU $134 (both hardbacks). Any idea what the difference would be between the two? The only difference I can see is that the cover illustration on the cheaper book is not in colour - but, obviously, that doesn't justify paying double the price. What's going on? :-/
I also noticed
this version of "The Folklore of Discworld. I have a 1st edition of TFoD; is there any difference here, or is it just a re-printing?
P.S. I just had a cursory glance at BD's "Bestsellers in fantasy" list. It includes Harry Potter and Game of Thrones but nothing by Tolkien. For shame, Book Depository!
For shame!!