The Most Valuable Collectors' Items in History

70. Back to the Future Nike Air Mags

Brand: Nike 
Original price: $2.300-$9.959*
Current value: $92.100*

Nike created the Nike MAG, which sports enthusiasts Back to the Future with money to spend they loved it. The MAGs were exact replicas of the shoes, which were worn in the second film BTTF . MAG was first released in 2011 and had a reissue in 2016.

Both releases were sold in limited quantities, and the original price was in the thousands of dollars. The 2011 release only had 1,510 pairs, and the 2016 release only had 89 pairs. All profits from sales were donated to the Michael J. Fox Foundation, which helps fund research into Parkinson's disease, an illness that actor Michael J. Fox, who played Marty McFly in the series, suffers from.