Why do Tube Amps sound more romantic v SS amps

I find this post most rewarding to read  for the manner in which each post was written and the the content contained within directed at individuals not having the knowledge base most of you have. Very informative! Thanks to all for your insightful comments.

@juanmanuelfangioii Is there a misunderstanding going on, do you assume I am an individual without an interest in tube amplification?

Where there is room to differ is that SS being just OK is very subjective as a statement.

The preference for a design is unique to each individual, 'each to their own', when it comes down to how a Schematic and Topology leaves an impression on a person.   

@pindac Tube DAC, Tube Phono Pre. 

SS is okay, just okay. 

There's a wide spectrum of sonics & performance in both SS and tube amps. You have to get specific about topologies and models to make any meaningful generalizations other than @atmasphere's (Ralph) very interesting and smart categorization of power paradigm (tubes) versus voltage paradigm (solid state) amps. Sometimes a speaker design will prefer one or the other. First research your speaker and audiophiles' experiences with amp parings. 

My Tannoys are in the middle - they can thrive on SS or tubes. I have a Phison A2.120SE that really turned me around on solid state amps. It's not "romantic" per say, but it's surprisingly sweeter and smoother sounding than the Rogue Audio tube amps - while providing the incredible speed an separation. I didn't know SS (class AB even) could have a midrange like this. The my VAC200iQ tube amps (a pair run as monos) are voiced to the "romantic" side but still very powerful, extended, and detailed. They're sweeter than the Phison, but only just. Then the Rogue Apollo Darks (250 tube Watts per side) excel at macro dynamics and slam; you might mistake them for SS given most of their sonic attributes.

In the past I've also had classic (restored) vintage tube amps - Heathkit W4, W5, Eico HF-87. And those are wonderful classic tube sound - but here too there are significant sonic differences between models. Romantic beautiful tone, fun sound, and they don't particularly sound rolled off either. 

I have heard that most speaker designs are built to deal with solid-state amplifiers. Add that buying a tube amp does not flourish with modern day speakers.  Wish I could recall specifics as to why this is.  Maybe someone else does.