Being that a lot of people listen to MP3 level music via tinny earbuds (I have a pair of name-brand earbuds -- they sound tinnier than a 1960's transistor radio); small, monophonic speaker cubes; tinny laptop internal speakers; medium fidelity clock (and often monophonic) radios or a boomy, monophonic smart speaker (like Alexa), it's all relative.The fact you still use the term "fidelity" is a window into your perspective on what sounds good or not. Compared with just about any modern source of aural media, AM mono sounds like frequency-limited, distorted, trash. Let alone via skywave.
For those who grew up listening to that sound, I suppose it could be interpreted as somewhat nostalgic, but certainly not of comparable quality by modern standards.
They could, but the cost benefit would be extremely lopsided in the negative.
People don't listen to high fidelity stereo systems anymore. Those went out in the mid 2000s.
The closest thing to high fidelity stereo for most people anymore is a car stereo.
And don't forget, a lot of those are outfitted with massive subwoofers that make the music sound like a jet airliner inside your vehicle, running at 60 hz.
Otherwise, yeah, your point is taken. I get it -- AM radio isn't comparable to FM stereo (when it isn't screwed up by terrain shadows), nor is it comparable to a clean stream through good headphones or really good computer speakers (there's a misnomer). And it's not as clean sounding as HD AM. When the local South Asian music station was running HD, I was pleasantly surprised.
RE: Streaming: They could still try it. I'm not sure if the US digital royalty rates are the same in Mexico as they are here. Maybe someone here knows and can enlighten us?