I tend to scatter CDs like overgrown confetti too, though from me it is usually in the form of buying a fistful of CDs from a singer I enjoy (usually someone I know or am seeing live) and passing them on to other people I think will enjoy them, usually people I think are not likely to hear them otherwise.
There are definitely a few expendables in my collection, though. I have always found it hard to get rid of a few things, no matter how bad. Books, recordings, photographs, and any plant that still shows green....
But even though there are a number of singers I go back to quite often, one year of non-listening would definitely be too short for me; I take a good deal of joy in re-reading a book I read years ago and loved, and listening again to a CD I have not heard in some time. It also amazes me how often I will go back to a CD that has been unheard for some time and "discover" a song that did not strike me the first time I heard it. Since I make my own compilations for the car, this happens even with favorites, when I have excerpted a couple of favorite tracks for a compilation, but later go back to the full album and some other song becomes a favorite.
My brother used to have a huge CD player/storage system that held his entire collection, and he could play a particular album, or a mix from a particular genre, or effectively "shuffle" and have random tracks from anywhere in the collection. (This might have been made or marketed some years ago by Sharper Image or Hamacher-Schlemmer.)
When he died, his widow was completely baffled as she could not figure out how to get the hundreds of CDs out of the thing, which was about the size of a classic jukebox.