The listening position and speaker position are very important IN THE CONTEXT OF THE ROOM. The speakers and the room have to interact properly to achieve sota imaging and sound that is not strident. Most people have to do the best with what they have in regards to the room. Few of us have the opportunity to design rooms specifically for two channel reproduction.
I do see systems that make me scratch my head. I also see systems that make clever use of the resources at hand. I certainly think people would be better served by analyzing their situation and managing the acoustic environment than pissing money away on silly fuses.
Another problem is that most people have no idea what they are striving for. They only know what seems to sound good to them and they have no idea what that is because they have never measured it.
You will hear rather frequently of people complaining about sibilance thinking it is a problem with either the recording or their equipment. I would guess that 95% of this is poor control over room acoustics.
Most systems I am invited to hear have this high frequency haze over the sound due to high frequencies bouncing all over the room. A cymbal does not come from one specific location but all over the place. You can locate the fundamental but the harmonics are spread out making the cymbal much wider than it should be.
The best systems are going to sound dull at first. They will always play at louder volumes without strain making you think they are nowhere near as loud as they actually are. There will be little if any sibilance behind female voices and imaging will be pinpoint and holographic, instruments and voices in space not splattered against a wall. The image will not extend beyond the speakers unless the engineer is resorting to trickery. You should feel the music even at lower volumes.
What are you listening to? Any idea? Have a graph of your system's frequency response? Group delays? The response of individual speakers? Out to sea without a compass would be the likely description.