If you don't quit, there's always a chance. At the 1920 Republican Convention, Warren G. Harding, the eventual nominee, was sixth on the first ballot.
His support actually dropped on the next three ballots, and he didn't reach fourth place until the seventh ballot. Yet he received the nomination, and went on to become president. I picked that convention randomly - I'm sure there are other examples.
And yes, somebody has to become veep, while other candidates have gone on to become cabinet secretaries - see the 1860 Republican Convention, where ALL the candidates eventually served in Lincoln's government. Even now, Secretary of State Hilary Clinton was Obama's campaign opponent in 2008, for example. Finally, there is campaign finance law.
I suspect Gingrich is doing this to pay off his own personal debts with money extracted from his campaign. Remember there was a big to-do about Gingrich's $1M jewelry bill at Tiffany's not long back. At a minimum, he might need the exposure to stimulate sales of the many books he's written.
And since he's close to Santorum, it's possible if not likely that Santorum continues to run for a similar financial motive.
McCain was really low in the polls and almost broke for a while and came to win the 2008 nomination.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.