Even something that should be as fun as collecting and trading cards (baseball, pokemon, etc.) revolves around "pull odds" for rare cards. There are people spending thousands of dollars monthly just to rip a desirable card they could flip for money that in most cases would never make up for how much they spent just buying packs and boxes of the product.
I was taking an Uber from Sonoma back to the Bay, and the driver was one of those people. He wouldn't stop talking about how he was spending thousands a month on rare cards, then reselling them, all the while losing money, his wife, etc.