The subscription covers all the features in Construct 3, not just a few services. We also have a cloud hosting network just to serve Construct 3 itself.
The cloud save feature will also work in the free edition, so that's not actually something we're charging for.
What would those services be? You are relying on third party services to host projects
The exporters seem to be the only thing hosted on scirra's server (running costs?) - which only creates limitations on the user side.
But that doesnt have to be the case - you could have as well made the browser download the exporter and include it in the editor..
So far I don't see a single new service with a running cost that construct3 will provide.
Developing and updating the software itself is a service that construct2 had as well- and the one time payment approach did not seem to have trouble paying for it. Why don't you guys request payment for software updates instead, if the software has no running cost services? It makes the subscription model seem unfair to some users.
Hosting construct 3 - which can also run offline anyways - its the same as hosting construct 2's installers
There seems to be nothing that would increase the price of hosting there
The subscription model will decrease your bandwidth for sure though
If you want to justify the "new running cost" , at least provide something new that the user will be paying for