With all the what you bought, built or sold today threads, I thought it might be a fun idea to start a new thread about which set you prize the most in your collection? I'm not talking about the one that has the most monetary value, but the one set that you wouldn't part from even if you had to choose between it and your own arm!

It can be any set of any theme, regardless of size or price.

To make it a tad more difficult, try to keep it one and single only set.

For me, even though I don't own that many sets, I'm very proud to currently own an unopened UCS Batmobile 7784 that I managed to get a few months back for a very decent price. Haven't gotten around to build it yet but I love the way that thing looks!

4999 Vestas Wind Turbine!!! It's a perfect combination of classic and modern! And the best use of the Power Function lights!

I have two: 6951 Robot Command Center (Vintage Space): If I recall correctly, that was the first set I ever got -- had a lot of fun playing with it, and even built the other models that were pictured on the back of the box (with some help from my dad. 6399 Airport Shuttle: I still so love this set. Compared every new train/shuttle since to it, and it still seems to come out on top every time.