lol good comparison. I imagine that there is somesort of thing that happens when you collect them all that it becomes a deck, so when there is a duplicate it throws something into chaos when triggering the merge counter. (Nerd theory) Still be neat that if you could make money of playing cards when you complete a deck.
That's actually a neat idea. I hope they incorporate that in an update sometime. I think there should be an achievement for that too. "Deck Builder" or something. Maybe different ranks. "Novice Decker", "Deck Veteran" "Deck Lord" "Master Stacker" something to that effect. lol
Yeah, hopefully they fix this issue soon, though.