Can someone please define
High-End Audio? 
$250,000/pair of tube monoblocks? - $60,000/pair of speakers? - $20,000 turntable?
...$10,000-30,000 CD player? ...$5,000 stereo preamp? ...$500 asynchronous USB DAC (jitter-free)? ...$200/pair of monitors?
...$50/pair of analog interconnects? ...$20/pair of lockin' bananas? ...$5 AC termination (plug)?
...$55 HD music tracks (hi-res music download for one album)? ...$40 for a remastered LP 200gr @ 45rpm?
...$30 for a SACD or Blu-ray Audio? ...$20 for a CD?
What is high-end audio exactly, and is it the same for you, I, her, him, and the rest of them?
Are there various levels of high-end audio?
Does money come into the equation? Or is it most importantly about quality music recordings, and in combination with quality audio gear to reproduce it faithfully in all its fidelity?
Where does it all start and where does it all end, or is there truly a limit to high-end, or the sky's the limit?
Is high-end audio obsolete; I'd say no, and it never will. ...Till audio forums keep existing on the Internet, and that high-end audio dealers keep fructifying.
...And that people like
Wizard have their blogs available to everyone. ...Man, does it have some cool toys there! ...And most of it quite sophisticated, European (French, German, Italian, Scandinavian, Mediterranean, ...), extremely good looking with accent of silver, gold, titanium, diamonds, emeralds, exquisitely exquisite and unique, beautifully designed and not so cheap either, ...just super attractive and bewitching.
That, is that also part of high-end audio? ...To me it certainly is; exclusivity. ...For the people in search of a higher audio level with a firm statement to enunciate.
...And it is also true from the people at a lower echelon of the entire audio spectrum. ...Sweet music to our ears is a very relative/sensory emancipation.
And it is in the ears of the listeners that personal emotions are truly developed and formed.
High-end audio: From the artists performing, to the recording engineers, to the mechanical devices reproducing the music, to the ears of the listeners in their own environment and with their own unique vibrating/emotional chords of their soul.