Offer the product for free, but sell support. (No developer finds this option appealing.) This is new to me - do developers really not like providing paid supp

Offer the product for free, but sell support. (No developer finds this option appealing.) This is new to me - do developers really not like providing paid support for their product? It's one of the easiest way to make money! The whole of India's IT industry makes money this way - the annual maintenance contract is a tried and tested business model. Even I've made easy money by doing light sys-admin tasks on VPS for clients. And I also feel you are missing a major point - not all developers are natural entreprenuers who know how to make money from their product. There is a big learning curve to figure out all the business stuff and often many developers don't have the time or inclination to do so. And yeah, SaaS provided a great way for companies previously averse to GPL licenses to really make money from it without adhering to the open source spirit behind it. And that is why all GPL software needs to be relicense under AGPL.