I think CD is going away...but it is a good medium (though clearly not the best), and is widely available (relative to SACD, blu-ray, DVD-a) for music. My suggestion? I like having a hard copy of music anyway...and when i can go to Amazon and buy nearly anything i want for 3 bucks...i am going to keep doing it til they run out...years from now. and then i can always transfer it to hard drive.
meanwhile, i am going to wait on trying to do high-res because there does not appear to be much available at this time. (certainly not in comparison to CDs). BTW, have you ever bought a CD for 3 bucks, and the lower-res mp3 version was 9 bucks? seems a bit silly.