Automotive
one was optioned with an additional 60 thousand dollars of stuff, and given to the 1998 Playmate of the Year by Playboy. Only sold for 126,000
http://www.barrett-jackson.com/Events/Event/Details/1999-SHELBY-SERIES-1-2-DOOR-CONVERTIBLE-81850
Only sold for 121,000, and was the only pearl white with blue stripes, an Italian leather interior upgrade and extra carbon-fiber.
http://www.barrett-jackson.com/Events/Event/Details/1999-SHELBY-SERIES-1-CONVERTIBLE-195714
I looked at a couple others, google will tell you about all the SS Ones that have been auctioned at Barrett Jackson, and they all have very little mileage, were all made in 1998, all 249 of them, and now they sell for about what they did new.
That means not enjoying them was a mistake, they simply took up garage space without being enjoyed, or appreciating in value.