I'd put this in the same category as mobile app dev. There are a few people making money by the truckload, plenty of people making a decent living, and lots of

I'd put this in the same category as mobile app dev. There are a few people making money by the truckload, plenty of people making a decent living, and lots of folks who strike out. If it's something you're interested in, go for it. I just worry that people see this like the promise of gold in a faraway land and go rushing in, not thinking about the real distribution of success.