Never saw the need to have 80g's of music on a mp3 player or spend a lot of money on one, I only have a Sansa 1g mp3 player so I could listen to music while at the gym then got the Pioneer Inno for XM and gave the Sansa to my wife. There are no commercials on the music channels on XM except for the 3 or 4 channels that are owned by Clear Channel that XM got screwed over with. XM and Sirius have station ID's on the music channels that some people refer to as commercials.