Considering Towers in the $3000 range

Another nod for Ohm. I have the 3000’s in a large room. No issues and outstanding sound. Check them out.

My favorite sounding speaker in this price range is the Vandersteen Model 2Ce. I've had others and in fact have something else right now but I wish I had my 2Ce's back. At some point, I will.

Salk Sound

You can view buying used as in home addition. I bought a pair of Quads and compared them against my existing Focals before I moved the Quads on down the road.   Didn't have any trouble selling them.  You can try 2 or 3 pair and still save money over new.  But of course its tricky.  lot of factors to consider. 

Is your amp a SLI-100 integrated? How "large" is your room? Avoid "home theater" and "party" designed type of speakers. The best 2 examples could be the Monitor Audio Silver 500 7G or the Sonus Faber Lumina V. Have not heard the 500 7G but was impressed with the Lumina at <$3000. I’m considering a Nova 2 as an upgrade from my Focus Audio FS8. If your music tastes are >33% current pop/metal/hip-hop/techno the Monitor Audio should have the edge. Jazz/classical/well recorded music would favor the Sonus Faber due to class leading tonality/timbre.