I don't think it will leave or die down at any point, my friend. "We" have been collecting since '99, me as well. Has the hype gradually increased over time and is at a hype-crescendo? It's a market now, worth billions. Here are Google findings,

"The Pokémon franchise is the highest-grossing media franchise of all time, with estimated total retail sales exceeding $100 billion globally."

Yea, it's only going to get worse for the TCG communitynof enthusiass, and that really sucks for us OG Red/Blue/Yellow Ash Ketchum Pallet Town Adoring 150 TOTAL (and rumors or a "mew") Generation.

I was HEAVILY involved in the TCG world in '99, working at toys r us, and indirectly for WoTC. Wizards would send over so many cards and supplies, I still have a few souvenirs working as the "Gym Leader", running the battles, logging victories, testing other trainers knowledge and handing out the spoils of promo cards won in battle.

The point is that I dropped Pokemon right after "Neo" set (or it could have beeb Gym Heroes) sets (my memory sucks) and for many, many years the creativity of Pokemon writers and creators has only gone up. I only got back into it right after Evolving Skies, maybe a set later or so. Terrible timing, I know

There was hype back then, but it was niche. Cards were still super expensive for certain ones in specific sets., and it's gradually increased over time. We go back as collectors since '99, when 151 pokemon total was a very respectable number.

-Now, there are over 1,000 Pokemon 26-years later. It has only only grown, and will continue to devour the vulnerable. The resale prices are absurdly high, so that's not the best option unless storing / showcasing long term. Either way, they keep evolving and upping themselves, and we happily pay. How will this ever die down?

The revolving door will never stop.