Anyone permanently convert from tubes to SS?

I can live with the Class A Pass Aleph and XA.5 series of amps - they are the best SS I've heard, though I suspect I would also like the Ayre gear as well. I own an Aleph J, but will always keep a tube amp as my primary amplifier. Having both is good, but if I could only have one, it would still be tubes.

Not sure about "no tubes needed", but I would say with B&W SS is needed. Some speakers B&W, Thiel, Vandersteen seems to need what SS can do and don't thrive with tubes because of their need for high current and drive into the low frequencies. The speakers you own has a lot to do with whether you get better perfomance for tubes of SS.

I think SS will almost always work better with B&W, even high powered tubes, tubes need speakers with flat impedances, the higher the better, otherwise SS will handle the speakers better. I do find that no matter how hard I try to want use SS, even some of the finest like Pass XA.5 series, as wonderful as they sound in their own right, something is missing for me that only tubes provide - tubes make me feel more involved, engaged and connected to the performance - my ears and preferences and indeed to each their own. Some extra "maintenance" is required for tubes - no doubt. Then again, my speakers are designed for tubes (Merlin VSMs). If I had B&W I'm sure I would not be so happy with my tube amps - well maybe CAT JL2s or 3s - but not cheap.