"The card’s artwork represents the real meaning of the Pokemon TCG: yes it’s a card game, but it’s 90% about collecting cards! And collecting is all about the artwork!"
Exactly. This is what makes Pokémon unique from other TCGs like Yugioh and MTG: collectors are, and always have been, the majority of consumers. And the fact that Pokémon has become the bestselling TCG ahead of even MTG shows the direction of the overall TCG market: collectors are the future of TCGs. People have gotten a taste of the Lambo money there is to be made via card collecting, and that's gonna keep all these new collectors around.
I believe that, in 5 years from now, card shops will either have adapted to cater to collectors as their primary market rather than players, or will be out of business.