To me, the only reason to spend $10K on a pre-pro is because you are damn rich.
Yes, if I were a billionaire, I would buy the McIntosh, Bryston, or even Mark Levinson (if they built a new pre-pro) or Krell every 2 years.
It's difficult to know what's going to technologically happen in 10 years with audio/video gears.
I hope it is relatively mature now - that HDMI & 1080P/4K will be around forever, but you never know.
I hope my high-end Denon AVP-A1HDCI will last 30 years.
The interesting question is, can a cheap-made-in-China-short-longevity-low-quality pre-pro have a Crosstalk of -92dB and SNR of -122dB ?
Am I buying an Outlaw or Emotiva? No, I'm not. But it's just INTERESTING to me that they both measure like a $10K Bryston. Interesting is just interesting.