I think I would keep my current system, with a few minor upgrades. If really pressed, I would replace my Mini 2 with the Magico Q3 and the Pass .5 amps with the .8 amps, and perhaps higher level Transparent cables. Then I would be done. I don't switch gear very often and when I do, it is slow and deliberate. At this point, I don't ever see myself owning gear other than Magico, Pass and SME.