Have you ever thought about buying something now and waiting until a year or two.. To get the possibility of doubling or more when you go to sell it?

I have a few Lego sets that have never been open because after a few months or little longer you can get your money back plus some. The set I found is $200. I have seen other sets about the same price point and they are going for double. Would you take the chance to possibly get more money than your investment or leave it be. The pictures are the exact one I am looking at. Thank you in advance for your view.
Have you ever thought about buying something now and waiting until a year or two.. To get the possibility of doubling or more when you go to sell it?
Have you ever thought about buying something now and waiting until a year or two.. To get the possibility of doubling or more when you go to sell it?
Have you ever thought about buying something now and waiting until a year or two.. To get the possibility of doubling or more when you go to sell it?
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