The Diablo skull looks bitch'n. I'm not sure what the hell an aesthetic artifact (although one could infer from the word "aesthetic" that it does jack shit) is but I know I want it. The Soulstone USB flash drive is killer. With all the horrible collectors addition BS that companies have been pushing on gamers lately (cough.. cough... Activision) it's refreshing to see that Blizzard has kicked it up a notch. I would say it's well worth the $100.