Which Lego set is considered to be the most valuable set to own? I'm not talking about the most expensive set, and clearly it has to be out of production already, but when trying to collect complete sets from LEGO history, there must be one or a group of sets that are prized possessions for collectors. I believe it's the Ultimate Collector's Edition Millennium Falcon (10179). With a $500 MSRP, it was already one of the most expensive sets available when it launched in 2007. In 2012 it is rare to see it for less than $1500 used but intact, and closer to $2000 if you want it new. There may be some smaller sets that have a greater percentage gain (a set that was $2 going to $20, for example), but I suspect at $2000 and a $1000-1500 difference, this is the largest magnitude. I feel I need to represent the Classic Town and Train fans with the following sets: Bricklink items for sale The only town monorail released by Lego and one of only a hand full of monorail sets in total.
As is the case with many classic sets that are hard to find 100% complete, it includes many stickers that easily become lost or worn over the years. Includes at least one element unique to this set - 2619 Red Monorail Motor Cover Rare limited release set Many stickers unique to this set and almost impossible to find 7750 Steam Engine with Tender Many stickers unique to this set Red 12v train motor (not unique to this set but VERY expensive as an individual part) Large train wheels unique to this set In terms of increase in value over original purchase price as a percentage, it may be hard to beat the Collectible Minifigs Series 10 'Mr Gold'. From the original price of $3 to prices of $500+++ that is a seriously valuable 'set'. Only 5000 were produced and so completing a series 10 collection is expensive if you were not lucky enough to find one. If you look at what a box is worth compared to the original price, I would say 3724 LEGO Dragon.
It went for $99, And now you can not find it for less than $350, up to $800 for a mint in box version. There is a website that tracks price changes on Amazon, Bricklink and E-bay in order to try to compile an index. It has an interesting page called top retired sets, ranking sets by gain compared to initial purchase price. At the time of this writing it lists 6166-1 (a big tub of LEGO) as number one with 65% gain, and 7200-1 (final duel) as number two with 31% gain. The previously mentioned Millenium Falcon is also on the list, with 21% gain. Seems like a good indicator. I think by actual worth sometime down the road, the most valuable set will be Lego Castle 6075, known to fans as "Yellow Castle". The most valued sets, when not using price as a criterion, will vary from collector to collector, based on their interests. In my experience doing LEGO Customer Service, collectors of all ages tended to focus on particular themes. While the Ultimate Collector's Edition Millennium Falcon may be the most prized jewel to a Star Wars collector, it may have little to no appeal to an avid Train collector.
It was very hard to talk about any themes outside the fan's specific interest. Even then, a Trains person may have interest in the MAERSK ship(not a train, but related), but none in the Hogwart's Express. Another sought-after set is the Grand Carousel, which isn't likely of interest to someone that only collects licensed sets. For myself, the most prized LEGO toy I could attain is an authentic wooden set from the pre-ABS era. The closest thing I have to it is the 2011 employee-only duck that resembles the pre-building system era wooden duck draw toy the company made (post-yo-yo fad, using the leftover yo-yo halves as wheels). Other categories of collectors are completionists who may value SDCC Bizarro minifig or a limited UK Sun bag as their most prized possession (similar to the Mr. Gold mentioned before.) The currently-selected answer is worded to be exclusively about how expensive the item is, which the question specifically requested not be used for this judgment. However, lacking any other criteria, it's not feasible to give a specific answer.
I must say, a very valuable one would be the exclusive Maersk container ship. the original 2004 set (not the 2011 reissue!) is worth a lot of money, considering they only made a handful. other than that, the Unitron Monorail can go for quite a bit MISB (Mint In Sealed Box) nowadays. There are now loads of sets which could be considered to be the most valuable. Here is a list of my choices 10179 UCS Millenium Falcon Chrome Gold C3PO (only 100 made) 5004590 Bat-Pod (only 1000 worldwide and will surely increase in value tremendously) This list is only my opinion. Value is very dependant on condition and personal preference. The best way to fully know a products value is to check completed item prices on eBay and current listings on Amazon (not as accurate). Sites like Brickpicker will give you rough prices. If you are looking to buy these types of sets there are many websites specialising in retired Lego sets. protected by Zhaph - Ben Duguid Thank you for your interest in this question.
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