You can start swinging in with your army of tokens once you hit level 3, since it gives your token creatures +2/+2, a pretty significant boost to their stats
Some people are putting them up for sale as proxies instead of legitimate playsets, but it doesnt really matter what theyre sold as
The Pikachu Illustrator is the clearest example: a PSA 10 sold for $16.5 million, while PSA 9 copies sit around $840,000 and PSA 78 examples fall between roughly $375,000 and $480,000 (CardsnPacks tracks this spread)
Ultimately, a Pokmon Trading Card Game sequel should absolutely be made for the Switch 2
9 Professor's Research Professor's Research is already a fantastic Supporter card, but in Mewtwo & Mew-GX decks, in particular, it's especially amazing