Crikey, there is some big money in Lego now.
I’ve still got the technic Bugatti veyron, unopened and in the shipping case from a punt about four years ago when it was £95 at Argos. No intention of ever building it as I’d have nowhere to display it. My son, now at Uni, has the Porsche GT3 R/S built, which seems to now go for daft money even second hand. We’ve also got the huge Mercedes Aroc tipper grab wagon which was a really great build with all the pneumatics.
Scrolling through eBay, there seems to be a theme of high value collectors, with unusual models, such as the carousel, and popular themes, Ghostbusters and Star Wars, looking to hold their value. I suppose these appeal to both Lego and the genre fans so a double bubble market.