I rarely read physical books any more. I used to have lots of them, I had filled a big bookshelf and was trying to figure out where I could fit another one. Then it occured to me that the money I was looking to spend on a new shelving unit could buy a lot of books at the secondhand book store. If I did decide to read them again it would be cheaper to just buy them again than to pay to keep them. I gave away almost all the books (and managed to sell a few of the better ones) and now only keep reference type boooks I may want to go back to.

I find it a bit odd how sentimental people get about books, as if giving away books is somehow destroying knowledge instead of spreading it.