New infamy aside, the card was a prize for a Japanese art competition, and this card specifically the 1998 Pocket Monsters Japanese Promo Illustrator Pikachu of which there are only about 41 confirmed copies in existence, with only 27 graded through PSA, and only one at a PSA 10 rating Of course its not the only expensive Pikachu card, as PriceCharting shows recent eBay sold listings, and PSA shows others through action, and a combination of both can be indicative, if not exact, of the amount of money spent on cards at the moment
Pull cards directly from your scanned collection into deck lists
You can see all the Japanese cards revealed so far in this news story from last night, which features several more that weren't revealed in English today.
Despite these restrictions, there were still a ton of great cards that didnt make the cut
For some more info on tests and such, see the post Spotting fakes part II
CGC notes "Playtester's Annotations" on the back of the case