I know it is not you but the industry parlance, so a question to anyone knowledgable. Is gross margin ever useful? Sure 50% sounds like a lot, but without R&D a

I know it is not you but the industry parlance, so a question to anyone knowledgable. Is gross margin ever useful? Sure 50% sounds like a lot, but without R&D and staff and other expenses, you can not make that 50% and even the 100%.