Ultimate Collector’s Series Imperial Star Destroyer

Another one in the list of most expensive lego sets is Ultimate Collector’s Series Imperial Star Destroyer. According to Malloy and van IJken, the high costs for Star Wars sets are due to the great desire for all things Light and Dark Side, rather than rarity. "Many enthusiasts acquire these sets in the hopes of completing the 'Ultimate Collector's Series' or discovering every form of their favorite ship," Malloy explains.

This incredibly detailed Star Destroyer has over 3,000 parts and is more than 3 feet long when fully completed. You send in the probing droids before sending in the fleet. It's a tie-in to all your favorite original movements, with over 700 pieces and a display plaque designating it as such. On the secondary market, other variants of the same spacecraft that aren't part of the Ultimate Collector's Series Imperial Star Destroyer may still bring nearly a grand.

Cost:$2,300