From time to time, cards and/or sets don't properly get added to my lists. As accurate as I try to be, my type collection is missing plenty of listings, I'm sure, and I know my inventory isn't always accurate.
One set that isn't quite right is BBM's 2000 O-N box set. The set was originally sold for 30,000 yen, which is about $300. Each set came with a 54-card set, and actually, there were two versions. You can read about the two versions, and NPBCardGuy's adventures with the set, here.
And you might recognize this card from his post:
Until next time...