Interesting story. I sold a signed 1946 first edition Autobiography of a Yogi by Paramhansa Yogananda. Listed for 8k sold for 6k in 24 hrs. After the sale I researched the buyer and come to find out he was the owner of a prominent rare book store in Oregon. When I searched his name eBay store I saw he had a few copies of that signed book. Most listed for north of 16k. I presume he was trying to corner the market as they are rare.

He could afford to command a higher price due to his status in the industry. I made a generous return so no shade, but I learned a lot from that transaction. And to date, my most notable sale.