That special Alita set is flying up the bestsellers chart, currently 23rd.
Looks like it might include a certificate hand-signed by Cameron, Rodriquez, and Landau. Someone on another site zoomed in on the card on the right side of this image and was able to make out the three names, each under a line assumedly for a signature. That would justify the higher price if true. Wish it was Rosa instead of Landau obviously.
I would pay $200 if it had IMAX.