No this is a very different case. Your views about solid state DACs goes against 99% of listeners on the subjective side as well as objective.
There are two explanations:
1. You are right and 99% of listeners of either type are wrong.
2. You are wrong and hence, your method of evaluation is improper.
I am working toward #2 because #1 is untenable and easily disproven. So many of us are happy with solid state DACs with none of the problems you say universally plagues that implementation.
On #2, first we have to remove your preconditioned bias to think solid state sounds bad. Until we do that, we can't get a fair evaluation from you. My late grandfather in law, may he rest in peace, hated cheese. We had him over once and my wife wanted to make cheesecake. Knowing he would not even touch it, she made it chocolate cheesecake. He ate it and complimented how great it was over and over again!

He had no idea it had cheese in it.
Likewise, we need to get you past your predisposition to get to what your ear really like and dislike. Like my late grandfather in law above, we need to create a situation where you don't know you are listening to solid state DAC to see if the fatigue remains. My bet is that it would disappear like a fart in the wind because the rest of us don't hear it. If you don't believe us, then just remove that knowledge and see for yourself. You don't even have to tell us that you did such a test. Just do it for yourself. After all, if fatigue is as present as you say is there, it should remain so without said knowledge of DAC. The only reason to not do it is to want to stay in a mistaken state.
And oh, you can do the testing in as long of a term as you want. Put one DAC in there and listen for days or weeks and then switch. You simply have to have some else do the switching and you not knowing which DAC is being connected. A loved one should be able to do that for you. Note that you have to repeat the process about 8 times or so.[/QUOTE
No Amir, I think you are wrong about the 99% number for the high end...as I said mass market cd players and built in devices don't count here...the masses don't care one way or the other. I will fight you tooth and nail on your strawman assumptions. Show me your data for 99% of all high end users of DACs are SS. Otherwise it is a BS number you made up. In my own circle it is 50%.
Since you are almost certainly wrong about this number then it basically throws off your whole psychological assessment of my tube "affliction". BTW., you may not have been in Munich, but there the tube affliction is everywhere! A lot of people need your help!!
Therefore, your suggestions are utter nonsense as well and not worth addressing beyond the obvious that I had SS DACs and still do. You have lost it apparently and only listen to yourself. I have lived with SS DACs AFTER purchasing and living with my tube DAC...I still have them and use one in fact in my downstairs system...it is ok... The other one I was using in my big system for about a year and half but would go back to the tube one ultimately.
I was like you once with an all SS system...gradually I realized it doesn't sound real enough for me and I tried tubes and found that much more to my liking...that is how all guys shift over I guess. I seems one of the last steps for a lot of people is moving away from SS sources. My Monarchy M22B SE DAC was the last non-tube piece in my system (it was and still is a very good ). Nobody steered me to the tubes...I just naturally gravitated there because to me it sounds more realistic.
I have bought 3 SS dacs since the acquisition of my Monarchy M24 some 10 years ago and I still have two that serve in minor duty roles but one I turned into a tube DAC...Lampizated it when it was possible to buy kits from them still. So now I actually have two tube DACs ;-)!
I would not have switched from SS to tubes in the first place if I found the sound natural and engaging...I tried the M24 on a whim because I was "happy" with the other one...time has told which won. Same for SS amps and preamps. Surely you are not going to tell me that 99% of high end listeners are only using SS for amps and preamps are you? You sound like a guy who is trying far to hard to convince me that I am delusional.
Funny, but most of my colleagues have shifted towards tubes as well (Gasp! SET even...), in part at least, from hearing my systems. Not to mention for a very long time I was using hybrids (KR Audio SETs are hybrids...only the output is tube).
Let me ask you a question...is it a better reproduction if it sounds more real or if it measures better? Oh wait! I forgot that all those differences disappear like a fart in the wind when we can't see what we listen with.