Even if I could percieve the difference between my high bitrate mp3/wma's I would never, ever, (willingly) go back to using CD's. The convience of having all my music at my finger tips, searchable and presented in a very apealing looking setup is just way too good to give up.

If you are willing to invest in a few big hard drives then you would have the best of all worlds using the lossless technic of ripping music off your CDs.