A report from 10 years ago reflects a different economy from 30 years ago. 1980's software distribution was as complicated as making a manufacturing physical p

A report from 10 years ago reflects a different economy from 30 years ago. 1980's software distribution was as complicated as making a manufacturing physical product. There was the manufacturing cost of the diskettes, packaging, manuals, telephone support, and marketing. Guess wrong about sales and you have a lot of worthless SKUs on you hand. So yes, as I recall from being a software developer back then, 15% seems about right.