Behind the "legaleze"...
Most streaming radio is limited to 40hrs use per month. Spotify you have to pay for to use it mobile, otherwise it is 40hrs/month on the 'puter.
I don't think there is a single streaming service that is allowed to go more than 40hrs without being paid. But with so many...
Exactly why 95% of my "streaming" (Aupeo/Spotify/Pandora/Slacker) is done in the car...
Where 128kbps doesn't mean anything in a diesel truck pulling 12,000 pounds...