The biggest issue for me and streaming isn't really variety, with 40,000,000 tracks the variety is in there, somewhere. But how to find what I like while staring into the vast abyss is what I have difficulty with. Everyone says just start in, and the algorithm will pick up on me and figure me out, my likes, but it doesn't, or at least I never have really gotten there yet other than just very occasionally. Then I start to put in some of the music I like and own,and sure enough it starts playing music I already have!! Then what it sees as "similar artists" are not really that similar at all in my opinion. Every streaming session I ever start goes like this. I'm getting the itch for the next great artist, one that will blow me away with all the things music does, if it's the right music. I start listening to recommendations" just for me" that have probably been in there for a month. I am sitting there at first trying to like what its playing but I am not. First I hang in there, letting the full track play, but I start getting a slight headache. Then I start hitting the next button, the thumbs down button, or anything that will make it stop whatever it is that is by now starting to po me. After a half hour I'm done.