The issue is that one of the cards has an "attack" that draws a card from your deck (its high HP and decent 2nd attack still make it useful for the deck) and his deck has Discard and Draw cards, meaning he stalls you while he slowly kills himself
Bonus points for the little Meowth hanging out on the roof, but points off for the attack being Mountain Ramming, which has nothing at all to do with this very lovely art
In the case of John Silver, Greedy Treasure Seeker - it really depends on how many locations you can play alongside the character
What I can say is that there will always be people like me who grew up loving Pokmon and still do, who may have kids of their own they want to share it with, and who will move from place to place with their Pokmon TCG collections in tow, remembering a time when they had to stand in line for a single booster pack.
And getting that wrong is how most beginners lose money as they bury a $40 card inside a bulk lot and watch it leave for six dollars, thinking they made a bag