That means that you cant use them to buy singles, booster packs, set redemption tokens, etc
Since it's likely there are very few quality copies of the card in circulation, it's easy to see why promo cards like Illustrator - or the prize cards awarded at the first Pokmon tournaments - easily outstrip fan favorites like the first edition Charizard Pokmon card
This is not limited to the TCG: Unova was based on the United States, far away from Japan on which Kanto, Johto, Hoenn, and Sinnoh were based, which already put some distance between this generation and the previous ones
The time and money you need to invest in accessories should also be considered as well as the fact that Trading cards games are always evolving thus your approach may need to change every now and then
Verazol, the Split Current I love this deck