RadioPhilly, it's not surprising that your market has a lot of HD stations. It's home to clusters owned by CBS, Greater Media, CC and Crawford - all investor-developers in the system. Jerry Lee is a rare example of an individual-entrepreneur "believer" in HD Radio, but that has more to do with ego and his eagerness to be "on the cutting edge" than it does the merits of the system.
In many if not most cases of noncomms running HD, they got their equipment paid for by government grants. That means you, I and everyone else bought that stuff for them. (What a country.) Pubcasters wanted the subchannels (NPR invented the concept) for nuisance subformats they've endlessly been pestered about by donor-listeners, such as jazz and classical, so that's a neat short-term solution for them.
The real question is, how people are listening in digital? I would bet: very few. And dropping.
In many if not most cases of noncomms running HD, they got their equipment paid for by government grants. That means you, I and everyone else bought that stuff for them. (What a country.) Pubcasters wanted the subchannels (NPR invented the concept) for nuisance subformats they've endlessly been pestered about by donor-listeners, such as jazz and classical, so that's a neat short-term solution for them.
The real question is, how people are listening in digital? I would bet: very few. And dropping.