Here we have a very lazy person who will not take the time to sell and ship them individually. He could make even more if he did but would rather grab a quick buck. Pathetic! 
Or the person isn't greedy and believes that the most cost effective (opportunity cost) way of selling 141 units is to make a bulk sale that would allow someone else to possibly make a profit on it. You see it all the time on eBay, especially with the bulk Classic SD lots. It's also a standard business practice, often called suppliers

Personally, I don't see why anyone would care what the person does with their product and time. It in no way negatively affects anyone else and, if anything, it creates an opportunity for others to either make a little money or have a good group buy.