Same here, I prefer buying books. But when you are looking for OOP books and closed companies, PDFs are a good way to avoid speculators from Amazon and ebay.
Regarding WEG IJ, given I could not find any of these on the PDF provided nor the link (still not working on my computer) would any good soul be able to send me pdfs (I could share my dropbox) ? Still looking for Artifacts, Adventures and Sky Pirates supplements.