Would you dare to do the same thing for the sake of earning money or do you think it would be a bad idea?
I personally think it would be a bad idea since the chances of pulling out a good card is fairly small, one needs to really like the game/cards in order to open an unsealed box of such value.
I agree, just like what others collectibles cards in the past, you will have to spend some money but in return you will find some rare card inside that can be worth on what you originally pay for it. But it won't be classify as gambling as the card itself is already collectibles and you can trade it to someone. As opposed to gambling wherein you already lost your money already once you start to put your bet unless you're lucky and win. And then others will hold for this card in hope that one day the value will be worth more, you can't find that on gambling.