I boxed all my CDs and provided them to the local library on "permanent loan". Useless to me.
I'd rather spend more time listening than disc shuffling.
I haven't sent my CD's to the library yet but that might be a good idea.
There are many things I like about the CD as a vehicle to get the files to my NAS drive, but otherwise never touch them again.
I have always liked a mixed or random play, even back in the LP days with reel to reel, and even an accutrack TT. Now I have my entire collection literally at my finger tips and the remote control is a wireless mouse that sits on the arm of my listening chair, and the flat screen TV with jriver on it.
This, while simple to use is very robust with features to play exactly what I want to hear at any time. Playing smartlists and I get a whim for something else I just select the track, album, playlist, artist or whatever and then add them to the currehtly playing now list with all sorts of options as to where to add the additional tracks, from next to randomized.
It's part of the fun of listening but playing randomized lists that have to be manually added like the typical streaming outfit is a chore to create and since there is no effective volume leveling features the volume has to be adjusted track to track which when random is always different. And while I know volume leveling carries a very slight hit in sq due to slight digital adjusting of the music output, I can't hear a difference and the music is always very close to each other output wise.
I don't think streaming has such capabilities but it might if it could be ran through a quality media player. I haven't tried all the streaming outfits but the ones that I did had the output level all over the place.
For me, streaming from one of the commercial outfits are fine for background listening or discovery, but to have my whole music collection tied to an online company likely will never happen with me.
40 million tracks is a draw until I think about how 95% of all music is crap (to me). That still leaves a lot I like but without the tools to find it, get it organized, and trust that all my music is safe from all sorts of company changes and bankruptcy, takeovers etc always being a concern, I'll be keeping all my music on a backed up NAS drive.