I appreciate being able to find the manuals. If they're free, great, but if the only way to get them is to pay, I'd rather have them than not. It takes me a significant amount of time to scan and clean up documents (I do genealogy and family photos, mostly), so I can understand charging more than a couple dollars for a good printable pdf. And if it's more than 70 years old, I believe it's out of copyright in most cases. On the other hand, I recently paid $5.95 for a PDF download and I was really disappointed with the image quality. It was so tiny and light that it was virtually unreadable. The images showing oiling pints were so pixelated that I couldn't distinguish the arrows. So, I wasn't happy about having paid for such poor quality.