I have bought a handful of these type of cards because i like to collect stuff. But frankly I don't get how this will work long term...... a baseball card or Magic card has value because it has a tangible use, minimally you can look at it at geek over your ownership..... not sure how that translates to a digital currency, how does one gain utility by owning these cards.
Cards will have value only if game exist. so that bring us again to centralized system. In theory, even is EDS turn off electricity, Card owners can make new game, or make other game beside this one. But without any game at all, cards will have, not no value, but a tiny value.
Actually, there is a time when cards will have no value, and that is when counterparty stop to exist.
I am not feeling any better from your post. I don't even see how a $1000 card has value in a game. do the most valuable magic cards get used in games?
as for counterparty, seems some clever engineer can figure out how to connect that asset to another.