I am right now listening to a MP3 player (Sansa) at work that has about 70+ songs that I downloaded around 3 years ago. It is also on shuffle. I can listen thru the computer of Rhapsody or radio stations if I want, but the company computers are not all that great and the speakers are so-so - also I plug in namely because I want to block out all the noise.
My other MP3 player (also another Sansa) has no downloaded music (yet) but I have cards with songs that plays like a radio. Not for everybody, and because of that Sansa no longer makes the cards.
Now, this morning I was listening to Tune-in radio and Rhapsody on my iPhone (thru headphones as well). I only have The Beatles catalog on my iPhone (it is also on my only iPod).