Looks like we agree as that is exactly what I am saying. It is a different game and the pricing will obviously be different based on the pool you draw from. Sorry to not write it out clearer.
It is a lottery where you will have to price the 5 cards (pack) according to the pots possibilities.
Other example: I got a Goldfoil Legandary in my pot of 500 cards. Will you buy a pack from me for 5$? (Numbers are obviously not exact but you could calculate them.) You will have a higher chance to win a GF and you pay for it with a higher pack price.
It is hard to make a business model out of it but you might be able to get a premium compared to sell them as singles. Some do like to open packs and play the chance game.
Anyway. I will keep some packs for the unlikely events that they will become valuable somehow. Maybe we get drafting games with packs or something else we don't really expect right now. You can always open them.
Ah, now I understand what you mean. This is of course true - but it requires to have both an educated buyer and an educated seller.