Couldn't understand Matt's logic last night. He was EXACTLY twice the amount of second place contestant going into Final Jeopardy. 27,200 to 13,600 if I recall correctly. So to wager $1 makes no sense!
If you're going for the win....why not bet more? The point being....he could have lost by $1 just as easily as 5,000. And sure enough, second place contestant (sorry, I forgot her name) wagered the full amount knowing that was her only chance to catch him if he bet NOTHING. If he bets nothing....he can't lose outright.
Fortunately for him, she got the answer (question) wrong, so it was a moot point. And he got it right, so still won 27,001. Still....puzzling.