Yea that Charizard stopped being printed decades ago; however they have no problem printing cards that look identical to the originals other than a small logo, which many people get and feel no need to acquire the original Charizard. I don't think demand in this case is nostalgia driven - it seems more likely that the heavy presence of scalpers making it difficult for average people to acquire product at MSRP has been causing the demand to skyrocket, in addition to celebrities like Jake Paul hype streaming.

Printing supply is not infinite, theoretical or otherwise. They are printing as much as they can, and currently have a new factory scheduled for construction. Once the factory is online, the supply & demand curve will almost certainly be affected. If it gets to a point where product is abundantly available at MSRP then suddenly the scalpers move to a different market to scalp and long lines of people camping in front of Target overnight dissipate. It will be interesting to see how the market dynamics change once the factory is complete.