Get 2 pairs of speakers for different flavors, not get bored with the same speaker and to accommodate a wider variety of.musical genres. Your room seems big enough to fit 2 pairs & the following should fit in your budget..
Speaker#1 JBL K2 S9900
Speaker#2 Tekton Moab
Tektons with the mid array have a very unique sound...its own separate category of speaker.
I am looking to spend about 20-30k on used speakers ( guessing they would have been -40K new a few years back). Any suggestions welcome. I have a 14*20 room and I am looking for dynamics, potentially a great sounding horn or equivalent. Excited by Tektons but since I have the budget wondering if there’s anything better. I did have the JBL M2s that I really enjoyed and Revel Salon 2s that I didn’t so much