The thing is. Why be greedy and evil trying to sell the expensive do-nothing machine? Just sell fruit bags!
If the grocery store had bags of fresh fruit I could squeeze myself to get fresh juice out of later, that's a legit product. In fact, it's a great product.
Here's how it works. You sell empty bags in bulk to grocery stores. You make money. The end.
How does the grocery store make money? They take fruit that is still good to eat, but doesn't look good enough to keep on the shelf. They cut it up so it looks good. They already do this, and sell the fruits in fruit salad in plastic containers.
Instead of putting it in a plastic container, they put it in the bags. Customers buy it at a marked up price. Then they squeeze it later to get delicious juice.
Why not just sell juice? Well, once you turn it into juice, it's not fresh squeezed for so long. People like to buy juice that was squeezed just now. Buying some fruit however, you can squeeze that later if you put it in the fridge.