A lot of it is probably location, and also comparing yourself to anecdata.
But some percentage of it needs to be standing out. There are a lot of developers in cube farms working with stacks that look exactly like your resume. The javascript stuff is very quickly becoming devalued as boot camps crank out front end devs by the hundred.
Maybe becoming (or just advertising yourself) as a leading specialist in one or two of those technologies, or becoming an expert in an emerging technology would do it.
But some percentage of it needs to be standing out. There are a lot of developers in cube farms working with stacks that look exactly like your resume. The javascript stuff is very quickly becoming devalued as boot camps crank out front end devs by the hundred.
Maybe becoming (or just advertising yourself) as a leading specialist in one or two of those technologies, or becoming an expert in an emerging technology would do it.