Just a minor troll: I have 10+ yrs experience with Django, none with RoR. I suspect I could take a RoR position and do just fine, budgeting myself 5-10 hrs non-billed per week to get up the learning curve.

But why would I do that when all the evidence I've seen lately is that Python + Node are the present & future (maybe add go, rust), whereas RoR peaked years ago and is becoming a legacy/maintenance job? Why fill my head with that?

When is the last time anyone has heard of a company building from scratch on Ruby?