My real interest is in getting to the "next level." Being self-employed for the past 12 years has been good but now I want to start my own business(es) and be an entrepreneur. Building subscription based websites is one of the ways I plan to accomplish that.
One of my "problems" is that I get excited about all sorts of things so I really need to focus on getting projects finished. That's why I feel I need to be in an either/or place right now, so that I don't over extend myself...
I would recommend coming up with some project in either language that interests you, and gives you a reason and a purpose to learn the language.
Do you want to learn for personal projects, or for your job?