@mahler123 Your second paragraph sums it up perfectly for me. Listening to (I wish there were a better term) "classical" music there are usually many extant recordings of a work - e.g. on Presto there are over 160 recordings of Mahler's 2nd symphony, with, e.g. 3 recordings with Bernstein alone - though I think he actually recorded it 5 times. With better sound reproduction you can hear the performance not just the music.
Since I retired 11 years ago, reducing my homes from 2 to 1 I have changed my system substantially. When I retired my NYC system was Theta transport, Sonic Frontiers DAC, Audible Illusions pre, VAC 30/30 amp, Audio Physic Virgo II speakers. In VT it was Scoutmaster with Koetsu Black, Esoteric X-03 SE, CAT SL III, VAC 70/70 and Virgo III speakers.
When I retired the VT system moved to the new house and much of the NY system was sold - or given to my daughter.
Since then the upgrades have been total, except for the speaker cables and the power distribution unit and the MIT power leads.
Each upgrade has dug deeper into the recordings but retained the musicality, the SL III replaced by a Sutherland Duo and Benchmark LA4. The speakers replaced by Atria II. The X-03 became the K-01 XS and now the K-01XD SE. Streaming is now the Eversolo T8, having gone through a Node and an entry level Aurender.
Then a Vinyl upgrade, Koetsu Black -> Koetsu Rosewood Signature - WOW. And then the Duo to Dos Locos - left me speechless - Vinyl went from very good to totally outstanding. If anyone has the budget and a suitable cartridge that phono stage MUST be heard.
Cables are now Cardas Clear Reflection with a Transparent Super Phono cable.
I am still in search of the perfect amplifier, I have the Pass Labs XA-25 - excellent but perhaps missing a bit of soul. The upgraded Elekit TU-8900 is gorgeous (NOS Brimar 12AU7 equivalents and WE 300B or RCA Black Plate 2A3s) but misses what I can only describe as "heft" on large orchestral works, though superb on A Capella liturgical stuff, and a couple of home-brew attempts that were pretty good but not an upgrade. I am contemplating something from Conrad-Johnson, but I am limited in what I can lift! That would probably be it.
I still have the VAC 30/30 but it makes an awful noise and I cannot find anyone to fix it.
My apologies for rambling on but it has been fun and the upgrade journey has increased my appreciation of the musical performances.