You're obviously doing the wrong quizzes Beth if you think they all end in draws. The Children of Fiji quiz is a prime example, and if you hadn't noticed the QFC Sports Quiz has a tie-breaker question, so unless we all conspire together and put the same estimated attendance down, then there will be no need for a draw for the 'top prize' or indeed any of the prizes.
John
PS Good Luck with your scratch cards, and I really mean that, as I don't begrudge anybody winning anything by whatever means, and as you so rightly say, they all benefit good causes (even Camelot !)