Perhaps this is the case with the SGM server, but the reality is most of the manufacturers will not budge on the MSRP when a trade in is part of the deal. Here again is an example where the product is not being sent in for an upgrade, it is being sent in to the manufacturer where it will be...
My interpretation of your post is that you are supporting the idea that investing big bucks in a product that uses technology that is literally changing daily will maintain its value and remain SOTA because the upgrade paths and/or generous trade in credits offered by manufacturers will...
You got me up to the Zenith SE/Statement part. This scenario (if I understand your journey correctly) is a perfect example of why we need to be MORE cautious to spend big bucks at this stage. Afaik the SE is/was not upgradeable to the Statement because a whole new platform was implemented...
Steve, If you want to simplify you can go this route: https://www.djmelectronics.com/gigafoilv4-inline-ethernet-filter.html.
https://power-holdings-inc.com/Keces-P8-8-Amp-Ultra-Low-Noise-Linear-Power-Supply-p137036155.