I see what your saying but there is some "contradiction" cause how can you listen to a radio station the whole month AND watch 30 trailers & listen pod-casts & watch videos online AND chat online with webcam! You cant do all of that at the same time, you'd need 8 eyes & ears!! Thus your initial bandwidth expectations will drop by say 33%. So maybe you dont need 30GB only 20GB
If you read my post correctly, you would see that I specifically specified only one hour a day for listening to radio.
And just so you know, I can listen to internet radio while still having DAP download files at 512Kb/s. It is possible to do many things at once, and again your argument is moot because many utilities running at once is supposed to be the point of broadband, another way in which our online experience is being hampered by slow connection speeds.