After realising the quality of the cards that Maxis prints, only stupid people who think their "indy" would print the cards.
Or people who dont want to waste their money.
At the end of the day a card is just a piece of paper with information on it. If I were to get into the card game and I had two options:
1) Go out to the store and spend money for a Spore Booster Pack with X amount of cards. OR
2) Hit the print button and get twice as many cards for free in less time then it would take to go to the store.
I'm pretty sure I, and many others would go for option 2, especially if pritned cards work in game, which the WW quote seems to support.
I personally don't see the big whoop about the card game. I'll be too busy creating creatures, worlds and managing galaxies to get excited over a trading card game.