First of all, thanks Qlik to let us (customers, users, partners) speak out and suggest new ideas. This one may be a little controversial.
I think the free Qlik Sense Desktop was one of the best ideas you ever had : it allowed a huge amount of users to test, develop extension, train before making the purchase decision. But more, from a partner perspective, it allowed us to show Qlik Sense with just a connection required. Another common use case I have : I can spend sometimes 10 hours in train during a week and I would like to go further on some work, such as a hard set analysis or some cosmectic changes on an app, while the connection is not available.
Another thing : on QlikView, we had a personal edition, nothing required. Great way to introduce the product to customers.
The idea is to be even freer than before : -totally free QSD -connection not required.
Bi Consultant (Dataviz & Dataprep) @ Business & Decision