I was thinking the same thing as you, but I watched a few blind listen tests and they tested Apple music vs. Spotify. vs. Tidal and I was surprised on how people could hear things in the songs they never have head before. Plus they have real high quality MQA tracks, but you have to be able to de-code it. I am going to try it out, I'll report back to you. I thought the Dolby Atmos would be right up your alley though with all the neat surround sound. If you hit the Windows Store you can try it out free on your computer for 7 days, it's a codec.
I have the Atmos for headphones stuff, but that's all virtualized. Putting true Atmos in would involve some expensive speakers, holes in walls/ceilings to run wires, enclosures for the speakers in the ceiling. The best way involves enclosures that have to get put up before the ceiling is sheetrocked, or would require huge holes and a lot of patch work. Self-contained ones are pretty weak from what I had seen.
As for your blind tests, who knows I guess. I'll be interested in what you think and whether you can really hear a big enough difference to pay more per month.
I asked an audiophile friend that has some spendy wired headphones, a spendy audio converter and amp for the headphones,etc. Seems like every 1-2 years he has a bug and some new dream of audio equipment to listen to music in high quality at his desk. either way, he has plenty into his setup. While he's super picky about his equipment and sound quality, he said spotify was excellent enough and he wasn't willing to pay the difference for Tidal
