Real world Loudspeakers what does very good cost ?

Soix very true ,a nice used speaker can be good ,I did this with a older Dynaudio 

and totally upgraded the Xover ,which is the ❤️ or the 🧠 of the Loudspeaker .

the vast majority has a average or below Xover in quality , thestock Xover was maybe $250 in parts I spent $1500 the speaker is night and day better sounding .

I am always looking for a hidden gem . I heard the Marten Oscar Trio I thought very good under $14k very musical . I guess most speakers will have compromises 

matching your electronics too is equally important .

$400 for Elac 6.2

$1100 Human Speakers DK 1

$1700 Wharfedale Lintons

$2000 Polk r700

$3000 Q Acoustics Concept 50

$5000 Klipsch Forte IV 

...   

@soix  if I lived in the USA I would buy those speakers as they look like a great buy.

I've found audio expos to be a good place to hear many speakers and speaker types at once.  No matter the upstream components, or the room setup, you should be able to get a feel for types -- e.g., box speakers, open baffles, panels, horns etc. and then brands, to further explore.  Also, because of the number of speakers at a show, the dollar question can be more easily explored. 

I agree with @arcticdeth. You should buy used and don't need to spend anywhere near that price to get great sound, unless you're insecure and it makes you feel better.