In the end, the performance increase is all that matters for those who have ponied-up the additional $110-130.
As I believe I stated, I was ready to make a move-up to a more expensive pre, (perhaps much more), but took the chance on one of these power supplies first. There wasn’t really much to lose. And I’m glad I did. That doesn’t mean I won’t replace it, I’m sure I will at some point, but don’t feel that necessity right now.
And I have done a little research regarding ‘linear power supplies’.