Cergorach said:You can sell the books on ebay and from that money buy the pdfs (legally) you want. Even if you have to add some csh the Original Electronic Format (OEF) pdfs are worth the added cost. Scanning them yourself is only a real option if there aren't any pdfs commercially available of the book, is short: Scanning is a hassle you can do without...
Sometimes Drivethrurpg has a sale (giving x% off a certain range), often around special days (such as haloween or DMsday...
I like this idea, but I'd buy then sell (minor detail) but I do have the means to buy the PDFs before hand. I'd just start with books I definitly want to convert (Like my Bastion Press Titles) as opposed to ones I care a little less about (Ultimate Guides even torn from the binding would work well in a binder or folder).