Honestly, does the VP selection really matter?

Listen to people who have been there:

Thomas Marshall, Woodrow Wilson's vice president, said the vice president "is like a man in a cataleptic state: he cannot speak; he cannot move; he suffers no pain; and yet he is perfectly conscious of everything that is going on about him."

FDR's first veep "Cactus Jack" Garner described the office of the vice presidency as being "not worth a bucket of warm piss" (not "warm spit" as is generally believed).

When the Whig Party was looking for a vice president on Zachary Taylor's ticket, they approached Daniel Webster, who said of the offer "I do not intend to be buried until I am dead."

Truman wryly remarked that the job of the vice president was to "go to weddings and funerals."