What is the actual percentage of people exclusively listening to vinyl vs digital?

Judging by pictures, only a small amount of systems have anything but the most basic treatments, and only a small percentage have serious acoustics. This is supposed to be the pinnacle of high end. I have always felt that is why all the tweaks. It is just different colors of the same wrong.

To accentuate and confirm your position, i will say that when people speak about acoustic treatment they think about some passive absorbing, reflective and diffusive surface balance.... Even rightly done this is not enough to tap into the essential sonic quality of a system...it is necessary to complement it...

There exist also a more active way, where a grid of resonators fine tuned and precisely located could increase extraordinarily the benefits of the passive treatment by a better timing between the reflected wavefronts of each speaker in the room...For sure it is not possible in a living room...These resonators are tuned in relation with the speakers behaviour in the room and modify it for the better....But contrary to electronic equalizer they work with a large bandwidth response for the fine tuning and because it is our ears who did the work and not a mic they work for all the room and not only for a very precise location in millimeter....They are part of the speakers/room and not an external tool....

I dont call that a "tweak"....It is a control working over the acoustical dimension....Same thing goes on with vibrations/resonance control, or decreasing the electrical noise floor...These control devices are not secondary addition but necessary precaution to reach optimal S.Q.

All that may cost nothing and cost me nothing by the way....

The reason why people upgrade endlessly is because they ignore how to improve and install their system....
When rightly done upgrading appear like it is: a marketing mantra...Anyway good sound is not a variable " taste", it is a musical perceived phenomenon, a musical natural voice or instrumental "timbre" is an objective experience because there is musicians or acousticians consensus around it...

And to contribute to the vinyl and digital format wars, i am pretty convinced that vinyl resist more to the degradation of S.Q. in bad acoustical room than digital... But digital greatest potential take advantage of very controlled room to shine... Then the 2 format are differently perceived in different environment....They are way less different than people imagine...

I am, for all intents and purposes, 100% vinyl. 
I do have a CD player. I still have cassette tapes. I listen to them when it’s not available on vinyl. 
I don’t stream. 

And as for room treatments, mine is semi-anechoic. Walls and ceiling covered with rock wool and burlap. 

Who knows....Funny when I used to buy lps.i alway bought stuff on sale $3 to $5 .Then the Cds.found a guy who sold then $9.99 ....So how I'm not paying $39 to $49 for a album....Please.

By the time I was old enough as a kid to buy music, cassettes and boom boxes were the thing and cd’s were just a couple years away. So I never got into vinyl.

Now, back into audio last few years, vinyl just seems like too deep a rabbit hole right now with digital so good and so much further for me to explore on that trail now. But maybe some day when I get older and have more time.

Interestingly, my younger brother (low 40’s) has had a $500 Audio Technica TT for 15 years, and now has about 500 LPs. He doesn’t have a high end system (B&W 20 year old speakers line below the diamond and just a top cuurrent Yamaha AVR). I talked him into getting a Mani phono pre at least.

Anyway, at Christmas I sent a Cambridge 851n streamer dac that I wasn’t using home with him to play with.

Went to visit him a few weeks back and brought one of my unused power amps (Edge W) with to swap in.

First we listened to his setup, and even with my more expensive 851n digital his TT sounded better through the AVR.
When we ran the 851n dac direct into the Edge W, bypassing the Yam, the digital pulled ahead. For some reason the TT through the Mani thru the Yam as preamp to the Edge W didn’t really click.

But anyway, to wrap this up he said for convenience he listens to 80% digital but when he is in the mood for analog the 20% of time he enjoys that most, but carving out the time to be in that mood is the issue