CD is digital, it is uncompressed/raw digital audio (WAV/FLAC for example). MP3 is compressed digital audio, compress it down enough and you start to really hear the loss of quality, especially below 192kbs. I do prefer Vinyl to CD though, I don't know why but it seems to fill the room in a different way, only ever listened to old records on Vinyl tho, nothing newer than the 80s.
I haven't bought any music for quite a while, I bought a "Mr Fastfinger" CD last year, but other than that nothing, my problem is that I don't really like any new music, I've become grumpy in my late 20s I think.