Owned but unread, read but not owned?

I own a couple of books that I have not read - these are mostly presents from people who were clueless about the genre I'm partial to, and so I don't really find the books interesting (The Bridges of Madison County, Tom Wolfe's Bonfire of the Vanities, and A Man in Full). I've also bought more bargain books than i have time for. These include: To Kill a Mocking Bird (I have seen the movie), Like Water for Chocolate, and Uncle Tom's Cabin.

On the other hand, I have read Jane's Austen's novels several times, but I don't own a single copy of any of her books.

Do you own books that you have not read? Have you read a certain book a number of times, but don't own it?

Owning books I haven't read is something that plagues me as well, for precisely the same reason you mention: buying more books than I'm capable of reading. Just a brief list:

Peter Straub's In the Night Room and lost boy lost girl
Mervyn Peake's Gormenghast Trilogy
Jeffrey Vandermeer's City of Saints and Madmen
China Mieville's Perdido Street Station and The Scar
Alastair Reynolds's Century Rain and Pushing Ice
Iain M. Banks's Feersum Endjinn and Against a Dark Background

As for books I've read a number of times but which I don't own, the closest would be books I've (sadly) lost: Paul Auster's The New York Trilogy and Alan Lightman's Einstein's Dreams.