Comment Re:cards? (Score 1) 100
According to Wikipedia gambling requires three elements: consideration, chance and prize.
Packs of cards certainly have the first two - consideration is (according to my reading) the promise or exchange of payment. I'm not sure I'd agree about "prize", considering packs of cards are clearly labeled to have "n random cards". Some may be worth more than others, but it's unlikely to buy a new pack of Magic cards to find one card worth much more than the price paid for the cards.
Loot boxes, on the other hand, have prizes that have 'street value' much higher than the price paid. Though due to the chance the prize is often much lower. That's more akin to Poker, there's some slim chance you can win 100x what you paid, though more often than not you lose money.