I would hate having much of a backlog under more normal circumstances, but it will be unavoidable for quite a while and it's hard to say how much will be sold as I go through everything (paying more for stuff later is more of a concern for me at the moment). I don't want to buy any more bookshelves, so it will be easy to stick to the essentials once I'm more aware of that (this problem seems commonly worse for people who download a lot/use Steam, or at least I associate this whole backlog business more with that).
Edit: This all got super weird on the previous page.