Interesting that the notion is that to achieve a High End Phohostage, there is a need to spend excessively.
This might be the case if the Phonostage is to be sourced from a Brand.
There are other options to achieve a Phonostage that can thoroughly impress, as a result of the design and BOM.
The type of BOM one might just be lucky enough to find is attached to a Branded Phonostage purchased costing between $20K - ,$+++