Did you ever wonder how important the vice-president is? One way to figure out is to know how well the government can survive without one.
Would you care to guess how many days the USA was without a vice-president? I will give you a hint. It was over a 1000 days. Please put a number in a comment than look at the answer.
(Scroll down to the vacancies table.)
BTW, that is about 40 years.