Some rare Lego sets are now selling for literally thousands of pounds online ... in production – with the price of the Mirkwood Elf Army set up a stonking 110% in the past 6 months according ...

A few big, pricey sets have seemingly escaped the price hikes so far, though: the Volkswagen T2 Camper Van, Lego Batwing, Cat D11 Bulldozer, and Space Shuttle Discovery can all be had at their OG ...

Comparing that 8% after inflation return for Lego ... price appreciation. As of 2015, the Collector’s Edition Millennium Falcon, a Star Wars set, offer the best return, trading for 2,712 pounds.

Lego sets come in all different sizes with different numbers of Lego pieces. Of course bigger sets cost more, but is there a linear relationship between set size and cost? Let's take a look.