Here is an analogy for you...
I hear the phrase "hard to get" being mixed up with "rare". These are VERY different. Consider a cloud - it may be very difficult for you to 'get' one, making them hard to get, but they are not at all 'rare' since they are actually infinite. Make sense?
Now we officially have way too many posts on the subject...
The real answer is that they are worth as much as a buyer is willing to pay. Congrats on having them all, and good luck selling.
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