Don't forget there are a couple hundred countries besides US. I make a relatively decent living by our standards, but nowhere near close to $100k/year. $150-250 per year is quite a bit of money for us.
It should be possible for a small devtools company to price differently based on locale, but I expect the support costs would then dominate any of the lower prices customers.
Even if you make 30k a year, $200 for access to a variety of tools you rely on to do your job is a no brainer.