The last time I walked this path, half the snowdrifts were, in fact, sleeping trolls
It depends on whether you collect for art, play in tournaments, invest for value, or simply want the most cards for your money
Some of them are remarkably accurate for this day and age: Since the guide came out near the end of 1999 (Fossil was released in Oct 1999), it doesnt have prices for any of the english Fossil cards: The guide also included images + translations for all Japanese cards printed up to that point, including Southern Island, and sets like Gym Heroes
Team Rockets Mewtwo ex, which is incuded as a foil promo in this box, has an Erasure Ball attack that can do up to 280 damage in one shot
It's fairly easy to find people who use Japanese as their default language by looking through the community collections and seeing which cards are displayed in Japanese