I probably can't hear the difference. It's nice to have a lossless source so that you can re-encode to a low bitrate for your portable player, though. 256kbps lossy audio sounds good, but 256kbps lossy audio re-encoded to 128kbps audio does not. (Right now, I have enough "legacy" 128kbps MP3s to make re-encoding unworthwhile; everything fits on my 16GB micro SD card. But that will not last forever, and who wants to carry around a hard drive over a micro SD card :)

The real problem is that the people mixing the music probably don't have as nice a listening setup as most audiophiles do, so when you listen to that music you are listening to the inadequacies in the setup of the person who did the mixing. I still have brand-new albums in 2011 that are clipped! (Not to mention, more bass and treble than there should be. Cymbals do not make your ears bleed in real life.)