This book and Blackmoor were my first two OD&D purchases, long long ago. I had no idea what to do with them, but they were cool looking and inexpensive and I grabbed them.
One of my favorite D&D books of all time.
All of this stuff has been available online for free for years. Any reason to pay $5 for something worth $0? Is any money going to the estates of the authors? Or just Hasbro?
Why pay for something when you can steal? Do you really need an answer for that?
That wasn't the question. Go work on your reading comprehension and come back when it's up to snuff.
Given that answer, I'm not sure I understand your question, either. These were never released into the public domain, and therefore never available for free on the Internet, unless they were pirated copies.
Or you needed to phrase you first comment differently because I read the first part of it the same way. The second part has a better question imho, I am guessing the answer is no at this point.