It is not the price of electronic components so much that give an Hi-FI experience...
It is acoustic....
The electronic component of Hi-FI is already mature for decades...
Acoustic is completely underestimated in small room ....
Acoustic passive material treatment....
Especially Acoustic mechanical active control with Helmholtz method...
It is my experience...
A dedicated room is the only necessary luxury in audio, not the price of the amplifier