I was stationed in Japan in the 70s, and electronics were cheap. So I bought a lot of different stuff, and was not really satisfied. A buddy suggested I try a pair of the original Advent speakers, and they were much better than the latest 6 way, 15 inch woofered whatever. I ended up with a Phase Linear preamp, a 4000 if I remember the model correctly, a Sony V-FET amp, the Advents, and a Dual Turntable, and a wife...
Then I came into a few bucks and bought a pair of Legacy Signature III speakers. Wow, recorded music had highs and lows.
Many years later, the preamp died. I was looking around and saw a review of the FET Valve preamp and talked my wife into letting me get it for Christmas. I can only afford to buy a big ticket item once, so I figured, based on the review, I'm getting a preamp that is just as good as a $2000 CJ for half the price. No piece of electronics can really be worth it, but it's a deal. Well, then I heard it. Talk about blind faith being rewarded. This thing wasn't good, it was amazing.
Then my amp went, and I bought a used Pass Aleph 30, because amps are amps, and this thing would drive my low impedance speakers and there was no suitable AVA amp on audiogon at the time and I couldn't afford a new one. Well, it still sounded good, but CDs were still kind of harsh. After replacing the tubes in the preamp, there was still something not right about a lot of my CDs. I figured it was time to start looking for a new CD player, but I was reluctant to spend a large amount of money on a mechanical device that was basically just a cheap CD reader. I remembered the DAC from my old AVA catalog, so I looked online. The Ultra was way too expensive, but I could afford the solid state model. I really hesitated based on the older review in the Sensible Sound that summed up the improvement as subtle. Then Frank came out with the Insight line and I figured this was the time. After all, I could return it if I wasn't satisfied. (I don't think I've ever returned anything in my life, but the guarantee was there.) Anyway, the improvement was major and the DAC is a keeper.
There would need to be some major reason to make me look elsewhere than AVA.