I enjoy having my music collection with me at all times. Mainly because what really buged me about the smaller MP3 players is that I wouldent be able to fit my whole collection on the player, and then I would want to listen to a song and it would always be one of the songs I couldent fit. So I upgraded to the 30 GB MP3 player and now not only do I have all my music, but music videos and quite a few movies, and I still have a ton of space left.
My only complaint about the Creative Zen Vision:M is that I started out with a battery life of around 3.5 hours for video, and im down to around 2 hours. I know this is probably my own falt for recharging when the player is not completely dead. I just wish Creative would have made it so you could replace the battey.