You can do better if you're selling the stuff yourself, but that follows a bathtub curve with totally bespoke on one end and Apple on the other. It seems it be

You can do better if you're selling the stuff yourself, but that follows a bathtub curve with totally bespoke on one end and Apple on the other. It seems it becomes a struggle to keep up sales unless you're on Amazon and stacked on big box retailer shelves.