I have GEC's that are a few years old right now that have already gone for twice their original cost recently.
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...and there I was, thinking of using mine. Now I am tempted to keep it as a safe Queen 
First, don't expect all of them to do that. Some are more rare and done in smaller numbers, and in unique patterns, than others (
I have GEC's done in limits of only 9 produced, one of only 14, and one that only 15 were made). GEC's are built to use.....so if that is what you got it for then by all means put it in your EDC rotation.
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