When I bought an mp3 player, a 4GB Sansa was about $10 more than a 1GB Shuffle. For my needs, the Shuffle wouldn't have cut it. I listen to audio books at work, and I like to have a lot of music available. Also, it has an FM radio. I don't need 30GB+ like regular iPods have, but the 4GB plus a 2GB microSD card is more or less enough. Plus, I can add tracks to a playlist, set it to "random" and then it functions just like a Shuffle.
The only thing I don't like about the Sansa (with my model, at least) is that the record button is really east to press. I wish there was a way to lock that button at least. Also, while it can play video, the format it uses is like 50MB per minute and I've heard from others that video playback eats the battery (anyone remember Game Gear or the Sega Nomad? At least now we have rechargable lithium batteries...), so the video function is pretty much useless. I didn't plan on using it for video anyway.
The only thing I don't like about the Sansa (with my model, at least) is that the record button is really east to press. I wish there was a way to lock that button at least. Also, while it can play video, the format it uses is like 50MB per minute and I've heard from others that video playback eats the battery (anyone remember Game Gear or the Sega Nomad? At least now we have rechargable lithium batteries...), so the video function is pretty much useless. I didn't plan on using it for video anyway.