How close are you to being to your endgame? My system outline and I'm almost there.

@erik_squires stated " Instead of buying THE single most expensive preamp, buy 2 really good one's that sound different enough you want to swap them in.  Same with speakers. "

I agree with this sentiment exactly, limiting oneself to One End Sound Only is a form of Monogamy in audio, where one is Wed to one system and don't quite know how to separate due to past convincing of purchases made, conviction made for the value of the choices. A faux fidelity is made to a material item or assembly of material items. Is the same expressed when one has pulled the trigger on resolving a transportation need, 'no' the eye is usually already on the replacement tool after a short period of using the new transport that has been selected. 

Polygamy for the End Sound to be produced, is much much more liberating.

Not wasting time or energies on defending choices made, and wasting valuable time expressing conviction to choices being made or considered.

Being free to be flexible and build on musical encounters and increase experiences of how much enjoyed music can be shaped in different forms by introducing upstream / downstream devices to create other influences, is a stimulation and generates new enthusiasm. 

Polygamy expressed toward the End Sound, what is not to like? It keep ones ear to the ground and keep one on their Toes.

I wonder how many Monogamy towards the End Sound Marriages shown by users of an Audio System, are actually now in the current time a well established Zombie Marriage?? 

I've been lying to myself, this time for over a year. While my purchases/changes have drastically dropped off in recent years, I now somehow seem to be the owner of Audio Note Quest 300B monoblocks. And I'm already in planning stages of bringing it up to silver level via diy upgrades with top of line or near top of line AN parts, this should be fun!

@sns  One immediate change that I feel confident will prove very much to ones liking and not require invasive changes is to work the 6sn7 Tube Option.

Early 50's RCA Grey Glass or Brimar Grey Plates with Orange Text are both able to make a Power Amp' present like a new piece of equipment.

In the current Market how lucky you are that only 2 X Valves are needed.

@aj1735 If you would like to sell your Wiim Ultra, I am at least tentatively interested. Can we talk about it?

I am no where near end game at this point. If I live long enough I expect to get there within the next couple of years. And while I appreciate that many folks have a single system they have carefully crafted to a sound signature they find satisfying enough they have stopped seeking out further improvements. If as an audio lover I am required to spend time with just one system and be married to it, I am sadly unable to do that. Many combinations of equipment can produce pleasing sound quality. In my current living conditions, I have a desktop system that is by every measure one can apply modest, it nevertheless is something I listen to every day and find its presentation quite satisfying. Its not end game but good enough I don't find its limitations so glaringly apparent that its frustrating to live with. It is somewhat bandwidth limited, with no serious bass below 30 hz, and it has a definite lack of dynamic range due to speakers and low powered amplifier. All of those deficiencies don't really impact my enjoyment much as long as I don't dwell on them. Because of where I live I really can't crank up the music to concert hall levels and most of the music I listen to doesn't have a lot of content below 30 hz. So because of the way its used, it meets the need for where I live. When I move back home, this system goes in the kitchen where it will continue to serve as capable background music for that room. Once there, it will likely get an amplifier upgrade which should improve the dynamic range considerably. Looking forward to seeing how it performs in that space.