Earlier quoted context omitted.
but 90% of the road can be traveled with just basic, but good components IMHO. Amen. No expert here but I've been in the hobby for a while and have demo'd some high end stuff at audio shows. I strongly believe a really good "90% of the way there" system can be put together for well under $500 retail, or even less if going DIY or used.
Can you give an example of such a <$500 system? I'm genuinely curious.
Or this excellent DIY kit and basically, any solid 50-100W ish amp. Might push you up to more like $600. But you get the idea.
https://www.parts-express.com/Amiga-MT-Tower-Speaker-Kit-Wit...
I have a generally very high opinion of Wirecutter's bookshelf speaker and receiver recommendations - any recommended receiver and any recommended bookshelf speaker, basically. Although, most retail bookshelf speakers in this range might be more like an 80% experience not 90% lol.
https://www.nytimes.com/wirecutter/electronics/audio/
Another thing you can do for a very legitimate hi fi experience on a budget is to turn modest speakers into excellent performers with DSP EQ. Either automatically with a receiver that has e.g. Audyssey auto correction or with a MiniDSP etc.
Audio reproduction is, well, signal reproduction/amplification. Whether a driver produces objectively correct sound via excellence in physical driver construction and engineering, or via a DSP assist, makes little difference.