The BILLY bookcase is pretty straightforward to build right out of the box , or you can get creative and make elaborate storage that looks great. The ScrapHacker had four BILLY bookcases left over from his poor student days, but they were not a good fit for his grown-up apartment. Did he kick them to the curb. Thanks to new-and-improved production methods, the BILLY bookcase costs less today than it did when it launched in However, savvy penny-pinchers like Noz Nozawa know you can buy these affordable shelving units at bargain basement prices in gently used condition on Craigslist. Stores like Pottery Barn and Crate and Barrel sell glass-front bookshelves for thousands of dollars..