I buy a lot of books, new and used. If I can find something as an ebook I will get the ebook because my eyesight is poor and I like reading text blown up large on a good sized screen. No ebook - buy new or used. For me buying books is like buying music cd's and downloads: I do it habitually and shop quite a bit. Other people put money into cars, motorcycles, boats, houses, etc. I buy books and records. Of course it's too much to keep it all in my house so I have a storage unit. Am I crazy? Probably.