I think it works as it is. The raffle last year really opened my eyes to what a good bunch of people are on here and encouraged me to stay.
The people that give to these charity things are the type that always will imo. I think for most the prizes are just a bonus rather than an incentive.
Now this has probably been thought of or mentioned but I think the timing is important. Last year I hadn't started to think about Christmas when the raffle ran so managed to contribute more. I know this time round is more a mini one compared to the extravaganzas of the past but i would have liked to have given more.
Damn kids and their need for presents.