[babelchips]

I am not interested in collectibles, I am talking about something much more interesting and practical.

But to entirely dismiss the category because you are only privy to slow & expensive implementations or trivial use cases is like saying no one will fly across the Atlantic or be able to transport heavy goods because the Wright Flyer can barely do 30mph.

There is a fundamental technology here that goes beyond trivial collectibles. If you need examples just ask rather than throw the baby out with the bath water.