I've got Simon and Garfunkle's greatest hits on vinyl, tape, and CD. I've got a few 8-tracks (heavy metal), a huge collection of classical on vinyl, but most of my stuff is on CD.
By the way, don't get rid of anything on an antiquated format until you find the same recording on the new format. For a while I collected tapes and had a few hundred. I began to collect CDs and eventually got tired of having both tapes and CDs. I decided to convert to CD and sold all of my tapes, thinking I would just replace them with CDs (I wasn't concerned with the cost.) I failed to consider that some of recordings are hard to find on any format, let alone CD. So, ten years later I am still trying to find some of my favorites. Anyone know where I can find Inspiral Carpets "Cool As ****" on CD?