Even if $7-12/mo is peanuts to you (it definetly isn't to me), it's still $ vs free. And even comparing bitbucket's free plan vs github's $12 plan, bitbucket's /still/ provides more value.
As for if github is so much better as to be worth the extra money is an entirely different flamew..discussion.
As for if github is so much better as to be worth the extra money is an entirely different flamew..discussion.