Pre owned is a great recommendation. Speakers come down to personal preference and advice on speakers is almost always colored by the preferences of whoever is giving the advice. Electronica and room acoustics also play a big role as well. Spending 20 k on speakers you haven’t heard seems crazy unless you have a trial period.
I’ve had Focal, Alta Audio and Omega speakers. You’ll find a loyal following for all of them, they all have a unique sound signature, dans if one are not likely fans of the others but that doesn’t mean that are all not great speakers.
Good Luck!