Actually I'm glad you brought this up. I just noticed for one of my items it was purchased once, downloaded 40 times in a month. I wonder if people are sharing their account? More data would be useful, like location of those downloads.
Sorry if I hijacked this thread but I only noticed after you wrote this. I don't know the answer to your question, maybe they intend to download it when they are home or starting their personal project or something like that.