I found this set in a thrift store. It's not 100% complete. The set consists of 1144 parts, divided into 14 bags, which are all unopened.

The missing parts are:
1 x 16x16 grey plate
The blue box itself
A tray with sorting compartments (there are two in the complete set, but I only have one)
A cardboard sheet divided into four parts (there are two in the set, but I only have one).

Does anyone have an idea about what it might be worth? And what if it were complete? Should I acquire the missing parts on Bricklink to get a complete set?

Thanks :-)

my set frontpage part list official set photo

2 Answers 2


According to Bricklink, the value of all the pieces of set 45100 is currently $201.85 (March 2020). Subtract the value of one 16 x 16 baseplate and you have an idea of the value of all the individual pieces in the set. (https://www.bricklink.com/catalogPOV.asp?itemType=S&itemNo=45100&itemSeq=1&itemQty=1&breakType=M&itemCondition=N&incParts=Y)

New, sealed sets sell very little, but the average seems to be ~$200 according to the Bricklink price guide. I would list your new, incomplete one for slightly less than that. (https://www.bricklink.com/catalogPG.asp?S=45100-1&ColorID=0)

It will be difficult to make it a new, complete set given the scarcity of this set and the fact that you are missing the box and a tray. That said, these components are for sale (the box for $9 + shipping for example) but IMHO getting all the missing parts is going to cost you more than just listing what you have for slightly less $ than the complete set.

  • Thanks for your great answer. I hadn't noticed that it's possible to see how many times a set has been sold in the last year/month etc., so thanks for that! :-)
    – Hildesheim
    Mar 6, 2020 at 12:18

Does anyone have an idea about what it might be worth? And what if it were complete?

According to Bricklink, a new, unopened version of this set goes for somewhere between 160€ and 200€, although there are lots listed for double the price as well.

Of the missing parts, the 1 x 16x16 grey plate is trivial to replace, and the others can be bought for 4-6€ each (except the cardboard, it costs less than 1€) as well. This means, there is probably no great difference in the prices of a complete set and your incomplete one, maybe about 15-20€ for all the missing parts (depending on shipping and handling costs).

Should I acquire the missing parts on Bricklink to get a complete set?

That entirely depends on what do you wish to do with it. If you'd just resell it, there would be advantages to completing it, but as there are not much demand for this set and all other offers are for new, unopened ones, I doubt yours (complete or incomplete, but opened nonetheless) would be competitive without price reduction.

If you plan to use it as intended, the missing elements might prove invaluable, so in this case it would be recommended to get at least the baseplate and the cardboard.

However, if it would just serve as a playset or a parts pack, then it does not make much sense to get any of the missing parts. The blue box might be a great all-purpose storage bin, but if you need one, you already can buy any brand on- or offline. The same goes for the sorting tray.

  • 1
    Thanks for your very(!) thorough answer! I'm planning to try and sell it, as my daughter is too young to play with it, and I prefer Creator Expert or Technic myself :-)
    – Hildesheim
    Mar 6, 2020 at 12:17
  • 7
    @Hildesheim Be aware that "too young" is a temporary condition (which changes faster than we'd like). Mar 6, 2020 at 13:30
  • @AngewisnolongerproudofSO :D <3
    – Hildesheim
    Mar 7, 2020 at 12:52

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