$$ are not as significant as sound signature of a speaker.
Also, specifically, what a speaker is capable of delivering.
For example, a nice pair of ESS Quad 57s at around $6K are a destination speaker for many. Or a pair of excellent $7K monitors.
For larger scale, a pair of $30K big floorstanders. It all comes down to if a speaker sounds like music to the individual.
However, a speaker is limited to what it is being “feed”.
The source then the electronics which amplify.
IMO, the most important and most vital are the two transducers. In my analog only system, the cartridge and the speakers. And those two are most responsible for the ultimate SQ. Again, the $$ are not as central as what sounds good to you.