What speaker is the most musical, one you never want to sell?

I have kept the speakers that pleased me the most over the years. Main system = Wilson Maxx2, second system - Vandersteen 4A, third system = Martin Logan CLS

Have had many speakers over the years, but am very happy with my Magnepan 1.7i. With good source material they provide a soundstage and level of realism that I have not experienced before.

@mark200mph 

Are you a member of the CAS in Colorado ? 

Harbeth C7ES-XD.

Other brands I’ve owned since 1970

Dynaco, B&W, Theil, Quad, ADS, KEF, and ATC. 
Nothing meets my expectations like this Harbeth. Unlike every other speaker I have owned I find nothing to dislike. A joy to listen to every day. I will always own Harbeth. If I had a larger room I might go for the Harbeth M40. 

Klipsch Heresy IIs circa 1985 with new Crites caps powered by Dennis Had Inspire KT-88 & St Pete EL34s.  Sweet, dimensional, non-fatiguing musical presentation that will be with me to the end.