But you really don’t need to pay this much unless you want the absolute best quality AND quantity (capable of going extremely loud, which is an engineering challenge that requires expensive solutions). You may find the “Speaker Attr Comparison” tab here useful to explore the price vs performance spectrum: https://www.audiosciencereview.com/forum/index.php?pages/Spe...
I would recommend learning to read the individual reviewed speaker measurements though, since there definitely is some information lost when compressing these incredibly rich measurements down to a single number, and the science still has some room to improve since there are some dimensions (e.g. the importance of low distortion at high SPL, or beam width) that this fairly old aggregate score model does not currently incorporate.
There definitely is some subjective taste involved, but the important thing is that we can measure these dimensions objectively and understand which is subjective (and why), and which is not a matter of subjective personal taste. We can explore these personal preference tradeoffs without completely surrendering to the subjective nonsense that ‘anything goes’.
For example, it looks like the most subjective factor remaining in speakers is the overall beam width — whether you want a more directional sound, or a more omnidirectional one that fills the room more broadly. This topic is at the edge/fringe of the established science, but the general consensus here is that the objective best would be a multichannel surround sound system of medium beam speakers, where you can either replay recordings meant for multichannel systems, or for traditional stereo recordings at least dynamically select how frontal vs surround you want a particular stereo recoding to be reproduced (just as you can e.g. easily adjust bass boost to taste depending on what you’re listening to, if it wasn’t recorded/mixed the way you like). But given that most people want to minimize the number and size of speakers in their room, there does tend to be a practical challenge of preference here if you can only pick one style (wide vs medium vs narrow beam) for stereo recordings (which while not an ideal format, constitute 99.999% of all music people enjoy).