When I was a kid I actually got a shiny Charizard in a booster pack or whatever they call it when they charge kids $11 in 90s money for a few pieces of thin cardboard.
One of the older kids bought it from me for $20 on the bus, and I was so happy I told my Mom. She thought that I ripped the boy off, as moms have no understanding of a child's perception of value, much like how moms occupy that liminal space of being a girl and not being a girl.
Anyway, she told me that if the other boy cared about that card so much then he deserved it, and that I had to give him his $20 back and let him keep the card.
I guess I learned a lesson that day?