I must have missed the original Nike case & EZ Sleep device being auctioned in the past. Where did you see those? There are quite a few items I have never seen in the auction, like the mini train and mini car props before. Of course the paper props are a different story.Haven't seen a Nike Cylinder or EZ-Sleep Device in a loooong time! With the Almanacs and other paper props it's different. They probabaly printed hundreds of them. maybe Thousands, who knows? they are not as rare as alot of people might think.
With the mattels it#s also different. The ones that showed up recently were not "premium pieces". Most of them had missing pieces or completed later with replica parts. I haven't seen an original lenticular hoverboard for years. And the last complete one (with footpad and all original, but only photoboard) was sold in 2008 by PIH.