Interesting assortment of guesses, with some very close ones, including 3 within 50 cents. The final answer was: $13.72, filled all the way to the top.
So the winner is TBaGZ, who guessed $14, twenty-eight cents off. Honorable mention to Breedy at 13.35, thirty-seven cents off. Send me your address in a PM and I'll fire away.