Who listens primarily to Redbook CD?

Red Book most of the time, either hard drive or dedicated disc player.  I have a few DVD-A's and maybe 25 SACD most being dual format, SACD/Red book. I also do vinyl.  I have a fairly large collection of music and really don't need to rent more.

I bought an Esoteric K-01X a year ago and since then I have rediscovered all my Red Book CD's.  Esoteric is one of those companies that believes you can get the best sound from spinning silver discs, as opposed to streaming or file storage.  They made me a believer.  It also does a phenomal job on SACD's.  But the level of improvement on CD's is more dramatic.  The K-01X unfolds and delivers 16 bit media with the same depth, density and delicacy as a high-end MC cartridge.  An absolute blast!!!

alexatpos' response in favor of RBCD:
"There is also a matter of owning (holding it) the actual product.."

Thanks for this comment as I wholeheartedly agree! 

Pretty much most of us I think. But all my files are ripped into my PC as lossless. And also a huge vinyl collection.

I was raised on vinyl.  I remember I was so poor in college I had no records or player of my own...but my roommates usually did - the set where the speakers would fold out and the turntable would fold down.  Once I graduated and had a job, building my record collection was a priority.  In those days guys would come over and see you collection and go through it. They would invariably say something like: "Dude...cool...you have the new Three Dog Night album, can we play it? " Except the address "Dude" hadn't been invented yet.

So my point is that it was a cool thing to have your "collection" on display for visitors to see...even after the switchover to CDs.  I miss that.  While I love the efficiency of quickly scrolling to find any CD I have on FLAC via my Oppo 105D with attached hard drive, I miss the collection display.