A scalable business is one where you find things get cheaper as you do more of the process. Software happens to be moreso than many other things (you still have

A scalable business is one where you find things get cheaper as you do more of the process. Software happens to be moreso than many other things (you still have to look at support costs, among others), but that doesn't mean it's the only industry. Selling burrito franchises, car dealerships, and grocery stores all work very very well at scale, and are very scalable.