This investment narrative becomes self-reinforcing: people buy PSA 10s because they believe they'll hold value, which creates more demand for PSA 10s, which supports the price, which reinforces the belief
That said, its a well-known platform in the Pokmon world with great reviews from customers, so you wont have to worry about scams
They are brand new, factory-sealed, and sourced directly from trusted Japanese suppliers
An original copy of Pokmon VS 2001 Tropical Mega Battle Complete Deck CGC Trading Card Game Graded (The Pokmon Company, 2001) sold at auction for US$175,000, the highest price ever paid for a complete deck of trading cards
If that alone convinces you to want to put money in, take a look and try to answer this next question
Scene boxes, which contain a pre-determined set of six cards that fit together to make a panoramic scene, were also a part of the original sets release