You act like you are the first person to discover SR. Been using their stuff since 2009 and moved up the ladder to newer lines over the time since. On my second Powercell and wouldn’t be without one.
I especially like their power cords and have yet to hear them bettered. IME, the higher lines get the best sound from whatever they are associated with. However, when current, their better products are priced beyond what most are willing to invest and IMO should invest for use in a "modestly priced" system. They take a big hit on resale value as you already know since that is how you procure them: from those that stay on the cable/cord merry-go-round and can afford to take the hit (like upper-end DACs).
Those that have budgeting constraints may find the older X2 and Tesla series active power cords are a true sonic bargain when paired with Michael Spallone’s $55 MPC upgrade. A ~$300+ total investment that still delivers superb results alongside their newer and pricier cables/cords. I find the Tesla "SE" and Element series very useful in fine tuning a system via the included bullets and probably the best value for those willing to spend a little/lot more.
Seems like you are more interested in touting your new cables than providing realistic and solid advice to others, although I agree with you re: experimenting before buying pricey cables/cords.
Dave