Exactly. It's not like you can only learn one language in your life, learning them both will give you a different outlook.
This year I've got node.js, rails 3, html 5, mongo db down pat, all in my own time. Its a fair bet that 90% of HN readers have done the same amount and way more.
Languages and frameworks are not important. Communication, problem solving and productivity skills are important.
Plus, learning more stuff = more fun.