I think the retro gaming bubble is part of the larger pop culture bubble that will surely burst sometime in the very near future. There's just too much of everything, the public is getting overwhelmed and cynical. It's almost become fashionable to hate things that are popular. Eventually all the comic book movies, video games, fantasy TV shows, fad toys and yes, even retro gaming products, will come crashing down in spectacular fashion.
I even believe the mighty video game industry is headed for another dramatic "market adjustment."
With that said I'm fine with whatever happens. I'm just here to play games. I don't collect them nor do I give a flying Flip Wilson about their value. I scoff at hoarders who never play their stuff. I don't care for homebrew devs and content creators who deliberately make their stuff limited just for the sake of saying it's rare.
Back in the day I literally never stopped playing classic consoles. Even when new hardware came along I still kept my old classics hooked up to another TV. They always appealed to me. And when I started to hunt for games in earnest the thrill for me was just finding something cool to play. In the late 80's and early 90's nobody really gave a damn about this stuff, and I bought most of my library for pennies on the dollar. In the early 90s I actually used to drive around in my 86 Toyota with a 19" color TV, a 2600 and a bag full of games in the trunk. It was a great time in my life.
So if the whole thing comes crashing down, so be it. I'll be like Nero playing the fiddle while Rome burns, because I simply don't care.