I recently purchased a Moon 280 D streamer. Bottom of the line for Moon's line, but I couldn't hear much of an improvement in more expensive streamers. I stream music much more than playing CDs on my McMormack universal disc player. When I do drop a CD into the McCormack I use the Moon streamer's D/A converter which is a bit livlier than the McCormack.
I listen to vinyl, however, far more than I listen to digital. I have a VPI Prime Signature turntable and EMT HD 006 cartridge, which I run through an Audio Research PH-7. I mention these pieces of hardware because they are good solid equipment which lift the level of my vinyl albums far above digital. Analogue on my system is more immediate and detailed. I've had friends who are not audiophiles notice the difference even though they haven't developed a discerning ear.
I listen to my Moon streamer to hear new artists or new albums. To discover what's going on in the musical world. Also to hear different classical artists playing pieces I own on vinyl and CDs. I often stream music I already have on CDs because streaming has higher digital samplings, up to 192 vs. 44.1 on CDs.
The reason I still have CDs is because I literally can't give them away. I own about 1200 CDs and it's not worth selling them piecemeal. Too much time and effort for too little money. But almost all of my CDs can also be streamed. So, if somebody wants to take all my CDs plus the spinning rack they sit on, and lives in L.A., give me a holler.