I don't usually keep a TBR, but I have one right now because I have a number of books I want to finish before year-end, and my strategy is simply not reading anything that's not on that list unless or until everything is finished. I expect it to take me pretty much right up to December 31st or a couple of days before.
I will say, I see the massive TBRs people have on Goodreads and it just seems pointless and stupid. I don't see what value a 1000+ book TBR has if you only read 20 books a year.
Up to $20 for a physical book if it doubles as a cool souvenir to bring home from an overseas trip (so it's got a nice cover and is sturdy). For ebooks, about $12 if it's a new release by an author I already really like, but preferably single digits, and low single digits if it's a new to me author.
I don't care at all about special editions or signed copies or whatever.
Also, I'm surprised that multiple people in this thread apparently think r/books subscribers have never heard of libraries.