Does hearing the best in high end audio make your opinions more valid?

The one who smiles and says "Oh, I like this."

You would think so but many factors come into play so probably not a reliable predictor alone.

I agree, it is way too subjective but, given all possible options, I would have to go with the one who seems not to care about anything but the feel. At least she/he would spare me of discussions about bare wires plugged into the outlet, magnetic shields for wooden objects, poetry about electrical appliances, and a batallion of tweaks lurking behind a corner.

Some times I wish I hadn't heard a great sounding system because it makes me a bit too critical listening to other systems, in particular my own.  I will also say if you do enough research there are people making amazing components, speakers, wires, tweaks, etc at reasonable prices (even cheaper buying used) and a bit of DIY you can create a wonderful system easily besting systems at 10 times the price you would of heard at a show.