@pani Description being presented by yourself are quite askew.
I have been in front of Phonostages on at least five occasions where approx' 10 -15 Phon's have been brought along for A/B Comparison demonstrations, where Phon's to be demo's are built by Commercial entities, Commission Built or Built by Very Adept EE minded Types and then the New Builder Type as well.
Phon's on a Line Up have been typically SS, Valve Hybrid, Valve Input/Output with a price range from a few hundred £'s to near $2K for a BOM for a Phon' and through to a Under £1K to £10K+ for Commercial offerings.
A Phon' producer who knows a thing or two about a Phon' for not many hundreds of £'s is quite capable to produce a Phon' with an end sound that is not separated to higher priced phon's when these fall into the under £4K price range.
With this I have heard Phon's with a BOM of near £2K be unapproachable in a comparison by Phon's costing north of £7K.
There is the odd Phon' at the highest price that has been capable to separate itself as a very very attractive option and if monies were not limited would be a consideration for a short list.
My own experiences have assured myself when it comes to the end sound being produced only.
Where demo's that have been heard, has been on systems that can have a costing up to £200K. There are Phon's being produced for less than £1K and then extending towards close to £2K that are so impressive as an end sound, a little extended time in their Company would be so satisfying, why would finding another £8K to £10K need to be parted with to have a at hand musical experience that is not too separated from a much more affordable option.
It is the Person who has put their thought into the Phon' that really matters, and People only know what they know, being influenced by their limitations of know how.