You need a triage strategy, son.
- rather than "saved for later" you need multiple lists. I have "Kindle fiction that interests me" "paper fiction that interests me" "hobbies and dreams" "sci fi research" and the like.
- whenever you have a long trip or a boring stretch, download five or six samples to your kindle (which cost almost nothing used). read enough to determine whether you like it or not. If not, yay! It's off your list. If you do, library it or buy it.
It's been my experience that about a third of the stuff I think I'll be interested in, turns out, well, I have better things to do with my time.