I used to collect books, but I purged them when we moved a few years ago. I almost exclusively use the library.

I know a lot of people like to own books, so own as many as makes you happy. If they ever start to feel like a looming TBR pile, then consider why you want to own them. I highly encourage people to set a limit as they start to collect books. The limit may be a number of books, a budget amount, or a specific space you don't want to outgrow. Too often people enjoy collecting but it becomes overwhelming, then there can be guilt over the amount of money invested in books not read or it starts to feel like an overwhelming to do list.