From what I've seen recently, RoR work seems to have decent pay when doing it remotely, compared to PHP. Perhaps less competition on price from developing count

From what I've seen recently, RoR work seems to have decent pay when doing it remotely, compared to PHP. Perhaps less competition on price from developing countries? I intend to learn RoR in the nearby future as well, since I'd like to do more remote work and less "on location" work (which I currently do as iOS dev).