Could not have said it better myself. At a minimum they should allow Early Access purchasers to apply the $60 they paid toward the $269 price tag so that it would be a $209 "upgrade," but the contents are not especially attractive either. Also, $269 is a really aggressive price point for a physical collector's edition, for most games it's $120-$150, maybe $199 tops. Clearly Larian did some marketing research and figured that a solid "base" of hardcore collectors would be willing to pay any price point, and that an offensively high price wouldn't affect these people (apparently their data shows there are about 25,000 such individuals).
The contents are meh. The diorama is sort of cool, but not really attractive looking, unless your decor is full of fantasy creatures and stuff it would stick out like a sore thumb. The tadpole keychain is really ugly. If used as an actual keychain the surface abrasion of keys and other objects would probably buff off the edges, turning the ugly tadpole into a strangely non-descript silver phallic object. Magic cards, 20 kids stickers, D&D sheets, the obligatory art book, all meh. Does not justify the $269 price.
But I guess the people who think like us are not the real target, we are not part of the 25,000 "will pay any price" collectors cult.