We want more of this!

Here's the capacitor shootout from awhile ago that I use quite often:

https://www.humblehomemadehifi.com/Cap.html

Great info and a really good read...

Not commercially viable, hard to stardardized. One can always get those for DIY project but most DIYers would not want to spend that much on one component

Speaking of capacitors, what's the status of the M.I.T. "Multi Cap" that was suppose to be audio's salvation?