I think one way to see it is that it being in vinyl (with all the romantic, old-music-industry, analog etc ideas it conveys) is also part of the signal.

As in, the signal is not the pure musical signal, but also the cultural one (the vinyl being emotional, nostalgic, romanticized, fashionished, fetishised, etc).

>Also, Spotify doesn't give you the same quality sound as an audiofile collection of CDs, due to compression

That's just a matter of time and better broadband connections. For most people, given their speakers/headphones quality, it's more than enough.