Tube Monoblock location? - Rack or near speakers?

It seems odd that they would want the tubes vibrating.All tubes are microphonic.They(the tubes) might even get more microphonic with all the vibration rattling their insides possibly causing a premature failure. Then a longer run of interconnects too.Longer speaker cables have always been preferred over longer IC's.Its a new one to me.

Don't forget,it is a show.Less than ideal conditions for setting up,transporting,etc.Dealers don't have the best options either.Plus audiophiles like to look at what they're buying.Those big amps are heavy too.Dealers I know keep their amps away from their speakers at home.Just another of my 2¢

I guess the governments,industry,and tube builders all wasted their time building tubes more resistant to vibration problems and failures.

Atmasphere,I would never want 35'long interconnects in my home like you have.I have tried numerous combination's with interconnects and speaker cables.My friends and myself all agree and all have longer speaker cables instead.Lower level signals pose more of a problem with longer cables.In theory balanced cables may work,but they are even more prone to RF noise than speaker output levels,and this isn't news to you.All brands.The vibrations from the speakers causing abnormal microphonic music is a nightmare.I can't imagine anyone liking this effect.Microphonics have been a known and proven problem with tubes,and even capacitors too.Wilson Audio and other high end speaker builders even use vibration isolated crossovers to help keep vibration noises from affecting the sound.Tubes and speaker vibrations have never got along,and I've never seen any other solution to the problem other than locating them in the least vibration prone areas of the room.Every room in my home has different areas that work best for keeping tube and vinyl feedback down.Distance itself works good for starters.

Atmasphere,Balanced lines reduce not block noise.