If my experience is any indication, this "survey" is flawed. I had very few, if any, songs on my PC before I bought a Karma. I just never had occasion to listen to music on my PC. Once I got the Karma, I encoded all of my CDs and since have started buying CDs and online music, and have quickly blown past the point where 4GB would be "enough". In other words, I think just asking people how many songs they have on their PC and then asking them what they think is important BEFORE they buy a DAP does not even begin to address how these things are actually used...