hello C3 colleagues,
What is the reason why some people want a desktop version instead of a browser version?
The browser version, for security reasons, cannot save as a project folder. It will only save as a .c3p file locally, in storage (through linking to dropbox etc.) or to local storage. This makes it nigh on impossible to use with source control (github, bitbucket etc.).
The desktop version can save out individual files to project folders, and so can be used with source control.
That's the main reason people want it, and not what Sebastien has said. As a long time C2 user and current C3 user, there is no difference in use between browser or desktop - it's all in your mind (we all had to get used to it!), and lots of people are just whinging and salty about Scirra's choice to a subscription model. They just need to get over it and it bears no relation to the software itself.