If someone asked me a year ago if I thought C2/3 would be a valuable tool for a developer for profit I'd of told them no.
But... now I'm starting to see a different angle.
This day and age, interactive media is still a big deal. From "games" on newgrounds to minigames on HTML5 websites, honestly with the quick efficiency to produce interactive web pages I'm surprised marketers and casinos haven't picked up on this.
Maybe I'm missing something on the "why hasn't this caught on" train, but I can see the potential now. I've been looking at companies (mainly casinos) who still utilize flash for animations on kiosks, slots, and other touch screen interfaces. One guy who ran his business for 20 years wants to get away from flash (and iOS), I work for his brother but it's so hard to get a hold of this guy (He's a millionare, parties a lot for a 50 year old dude)... maybe the kiosks aren't designed to read HTML5, but with how fast web has grown it's become a common interface for just near everything.
As for marketing, imagine cranking out webpages, prototyping how the pages look. In matter of a couple hours I've made some pretty spiffy, professional looking web pages in C2 much faster than trial and error with all Front End languages you normally get. I dare call it "cheating" but in the business world there is no cheating if it increases productivity. A company like Disney or Funimation could really benefit for having people design games for all their properties, kids could play these games online.
Imagine playing a point and click game of your favorite cartoon, say Stephen Universe? Maybe a fun online board game for the Walking Dead? Or advertise a new restaurant with tons of images and requires hours and hours of formatting and placement you can do in a matter of minutes?
I've been checking indeed using HTML5 as a tag and it's mostly just Front End stuff, nothing to do with creating games or the like. It doesn't have to be strictly videogames, could be for anything really.