For the most part--own. Absolutely no question. I'm not just a reader. I'm a book-lover. Full-blown biblioholic. That would be why I currently have over 2,000 books. What I'm in need of is my very own private library so I can have all of them displayed instead of most of them boxed up.
The only exception to this would be current books. Most of the books I read are classic or vintage--less than 25% of the books I read are current. And I'm very picky about the current ones. I'd probably read them first and then go buy them if I really loved them.