honestly any in person interaction id consider so mtg or warhammer 40k to
Valid, dnd... it's social, it's creative arts, etc.
Warhammer and other board games like carcazone or Scrabble, etc. are valid to me as well.
I guess it get complicated when it comes to cards. mtg and yugi and Pokemon, because it's also digital. Depends on consumption styles. Augmented reality playing Pokemon go?
Justin.tv or like "content creators" is fully their life. It's oddly uncategorizable. Just all on their own box.