I mean, a 1-month gig will pay your rent for the year. Another one will pay for your servers, hosting, dev machine and food. The rest of the time is yours to spend as you like.
Is it possible that people are doing "consulting" work for <$50/hr and mistaking it for the real thing? That, in my mind, is not consulting but rather "being taken advantage of." Especially if you do it in an office surrounded by other employees in a similar position.