Would you move to a bigger house if you could just to have a better listening room ?

So, to answer my own question, no I would not move just for that but would take it into consideration. Had to pass that Vermont opportunity - too far away and too expensive to build a proper house there.

Most definitely. 

Interesting to see the different reasons for/against.

No.

I learned enough to make any room to sound at least good...

Acoustics rules...

😊

Yes, but daunting.  I live in Silicon Valley and home prices are ridiculous so increasing space is expensive.  Pressure to stay local so that my triplets won't have to commute far after graduating college.