I think you are de-evolving. You should listen to some high power single ended tube amps and preamps. If the amp splits the single how does it get it back together at the end??? I can't even get toothpaste back in the tube.
Anyone else evolve beyond tubes?
Over many years of owning both solid state and tube amps/pre-amps, my most recent high end system makes me question the need for tubes at all, except at the source! My Mcintosh C46 pre and MC501's driven by an MF A5 CD player into Dyn" C4's with MIT Magnum cabling produces music of great beauty and dynamic swing. I even demo'd some of the newer tube gear available for comparison...not even close. I think modern, well designed solid state gear is superior overall...at least with a tube output stage in your source!