I offer two version of my software - a system that can be run offline at your faculty and a version that is basically cloud based. The two versions are aimed at

I offer two version of my software - a system that can be run offline at your faculty and a version that is basically cloud based. The two versions are aimed at different types of users. It works well as an approach. The cause of Jacques complaint is that it is very hard to sell a perpetual offline version at the true economic value of the software. In my case the customer would need to pay 72x the monthly cost for the value to me to be equivalent. Everytime I discuss this with a customer they don't want to pay anywhere near this amount. I know much more about how likely a customer is to keep using a product long term than the customer :)