>>52565224"Boomers" for pokemon are in their late 20s to late 30s. They aren't even in the wealthiest part of their life by decades. In the meantime, these pokemon and their old cards, are constantly showcased as the golden era, the originals, WOTC, the historic. At the same time, these pokemon still exist and are put in new media and games to this very day.
So a kid plays pokemon or watches the anime, sees a cool thunderbird legendary called Zapdos. Now he wants to learn more about it and maybe collect some cards. He gets his modern fills because those are easily accessible, but then he hits a road block. He sees some older cards that are cool and rare. Rocket's Zapdos ex, secret rare Zapdos from Supreme Victors, Rocket's Zapdos from challenge, and then he comes across Zapdos from Aquapolis and learns about eseries cards and their amazing art.
Because these pokemon still exist in the franchise and don't retire, there will always be demand for them. Kids aren't as invested in older cards compared to modern due to their exposure and knowledge and price. You can easily go and buy the alt art galarian zapdos for less than $100. But it would be difficult to get a 1st Edition Rocket's Zapdos for that price.
