Though calculations differ
                                
                                
                                    (Newser) -
                                    How much does a vote cost? Estimates vary wildly, from $5 to $175,  Slate  reports in its Explainer column. In 2008, winners spent an average of $1.3 million to win roughly 185,000 votes, meaning each vote cost around $7, while losers spent an average $493,000 for 91,...