I was curious as well, and I found an older article that stated he owned a liquidation business and he was selling the cartridges out of them. I guess they were junk/returns, and he has a warehouse, it looks like he was going through a divorce and lost the warehouse/lease and took all the printers, which he had left, back to his house. He had them on pallets in his driveway. Then for some reason they ended up scattered around the property, probably trying to devalue the property so his wife would take a beating on the sale. That is my feeling.
THANK YOU! for the background info.