Nagi Sanzenin seems to have wealth untold. Then again, her level of wealth is debatable, along side Bulma's wealth. Who knows how rich either of them really are. Which makes me wish I was part of their families.
Lol deffo do, YGO is one of those animes that so ridiculous it's hilarious, but I do legitimately enjoy it as well. It's just funny to see people freak out so much about cards xD