I agree, the process of building a new product and a successful business is really hard. Especially if you're dislodging existing processes in some way. Extensions and other little bits of process automation can be a nice way to help offer clear advantages over those spreadsheets. None of that is foolproof though, and it's still not easy. That said, it can still be a good signal that there's something in the business which could be turned into a useful product or service.