Scratch-off lottery cards also are set in stone and they're just there, ready to be bought. The odds are known to the public (and probably right there on the ca

Scratch-off lottery cards also are set in stone and they're just there, ready to be bought. The odds are known to the public (and probably right there on the card), the card has a fixed value but until you've bought it you just don't know if this card will be worth $0.25 or $500. That's 100% gambling. And the concept is soooo very similar to booster packs.