Logistically makes sense. Looks like it's Ben Mart, opened by Ben Foods, which is a subsidiary of QAF Ltd (where Ben Mart is located). Ben Foods location is slightly to the west, across Jurong River. QAF Ltd is... Just upstairs of the mart. Looks like they're a trading/distribution company, dealing with those brands you see in the video (Farmland, Cowhead, Gardenia, etc.). For those products that can't be sold to Fairprice, Sheng Siong, or anyone else due to too short remaining shelf life, they can just put them in the vending machines and there's a chance for it to get sold. In terms of rental, it's just a small space in a building they're already renting. In terms of manpower, just need to check, clean up a bit, and restock, which probably wouldn't take more than a few hours, especially since it's just downstairs. They can sell it for cheaper because of the shorter expiry, plus they're getting it at pretty much the best wholesale prices anyone can get. All in all, probably doesn't cost a whole lot in terms of capital investment to start this initiative, but there's a chance to earn back from the sales, otherwise it's gonna expire soon anyway.
Seeing the brands and the companies involved, I kind of understand why they set up shop so randomly there despite such a niche target audience.
Some of those packages are more supermarket size than vending machine size. Dont exactly know what youd do with the frozen leftovers, but very cool video. Looks pretty off the beaten path which is neat.
That last part reminded me of something that sometimes happens in my country. When you open a fridge in your house, take out a frozen tub thinking that it is ice cream, only to realize that it was a tub of beans(usually black beans but the beans can vary depending on the region).
Oh the desire of something only to have it met by extreme disappointment...and yeah, my grandma has "cookie boxes" like those with sewing stuff too.