Not so sure, I saved over $1200 this year in about 1 hour of research and 1 hour of phone calls and live chats... my time is definitely not worth $600/hr.
Your savings are also tax-free (for personal bills), so for those of us paying just over 50% in taxes on the last dollar, we make would need to make over $200 in income to put the same $100 in our pocket as cutting a bill by $100.
Well, it would be if you did that exact job professionally ;)