They direct you to XM/Sirius as opposed to HD Radios (they are available at most electronics stores now at least) because satellite did much a better job lobbying the automotive manufacturers and electronic stores to make customers have that as an option much quicker. Whats not to like about something free for a year when buying a car?
And they had to do a better job lobbying, they invested billions into launching those rockets into space and Howard Stern's Contract, as opposed to HD-allowing some stations engineer or part timer to order the equiptment to set up some side channels, and then have someone program that side channel at a minimum additional expense to the station really.
Though many stations do run the HD radio promos, people don't see any benefit in general.
And they had to do a better job lobbying, they invested billions into launching those rockets into space and Howard Stern's Contract, as opposed to HD-allowing some stations engineer or part timer to order the equiptment to set up some side channels, and then have someone program that side channel at a minimum additional expense to the station really.
Though many stations do run the HD radio promos, people don't see any benefit in general.