You don't know much about the history of software sales. I've worked at software companies for 30 years and you are wrong. The first company i worked for folded

You don't know much about the history of software sales. I've worked at software companies for 30 years and you are wrong. The first company i worked for folded down from 12 employees to 3 because revenues couldn't support us. We got our first upgrade out ($29 for existing customers on $99 retail) and it saved the company. Two years later we had 4 products and 30 employees. If we had been forced to give the upgrade away for free to existing customers like iOS requires, we would have shut down.