Most recordings you own by a single artist, group, or composer

I don't collect, I buy (bought) to listen and pass on to my sons, so what's exiting the brain .... nearly all albums of

Dylan, Stones, Beatles, Ani DiFranco, Oscar Peterson, Terrance Blanchard, Cassandra Wilson, Van Morrison, Billy Joel, Kate Wolf, Eva Cassady, James Taylor, Patty Griffin, Nora Jones, Nancy Wilson,  omg, 

Well, then I got into Reel to Reel, (acquired content limited by the end of production 1980's), stopped buying CD's, then back to/upgraded Turntable, buying some new but mostly cleaning my existing LP stock, so I don't own or even know about the current output of favorite artists. Minor streaming, but to find new artists primarily using Pandora 'stations' feature.

Elliotbenewcombjr, I’m with you Elliot, I buy to listen to artists. When I find an artist I really like though, I keep going until I find everything of his or her’s you could hope was good. That takes a bit of time with artists who were more prolific. With finite resources like most of us, sometimes I feel when buying CD’s I might be overdoing it on the collecting side, and missing out on buying new or different genres, or artists material. I suppose I should just win the lottery, then spend indiscriminately on CD’s.

Mike

In the neighborhood of 60 Coltrane LP's, run up by Miles, Bach, Neil Young, Smog/Bill Callahan, PJ Harvey, Joy Division/New Order, Beatles, Arvo Part, and countless others with several each.

Three pages of comments and not one fan of Alison Krauss and Union Station? I understand that with only 14 studio albums plus numerous joint ventures they don't fit the O.P,'s criteria of 43+ but still.
12 million albums sold and 27 grammy awards you would think she would have a few fans. FWIW, she has assembled one of the tightest and most talented group of musicians I've ever seen and heard. 
One of the few bands that sound exactly the same on stage as on recordings.

@cymbop no noobs at all. The beauty is all the music waiting ahead