It is gambling, but if you can justify your odds being higher than mere chance, then it's a gamble you want to make ;) I do agree that on a long-term basis it

It is gambling, but if you can justify your odds being higher than mere chance, then it's a gamble you want to make ;) I do agree that on a long-term basis it is quite unpredictable if Lego would still appreciate in value. But I guess it would be quite reasonable to make a good guestimate for the next 3 years and popular Lego appreciating in price. I do assume that I'd be able to research and understand when a Lego model goes out of production. In other words, I believe that the reality is a lot more subtle than "In the end it's just gambling." I don't think it's just gambling.