What do you think is the situation when the same image is purchased on the same day, same license, size, etc., multiple times but by different agencies?  This has happened to me several times and it makes me curious.  Are the purchases from the same buyer who is supporting the different agencies?  What's your opinion on this?

I forgot to mention, the images in question are old images, way back in the closet - not new or recent images added to my portfolio.