Node.js is a section of services that will be needed now and in the future to create distributed web services/ sites, so yes node js is important to the next level of the web resources.

I don't think you've read my question.

I believe s/he's saying if you invest the effort to learn Node (considering you already know js), you could find yourself in a significantly more marketable position in the near future (thus increasing the chances of making that 100k).