As far as I understand, this is a test format for now. The optimal reward size can only be determined empirically. If there is no interest in such a reward, then a decision will probably be made to increase it. The same applies to the prediction period. If a week is too short a period, then it is possible to extend it to 2 weeks or even 1 month.
----
It is possible (but I am not sure) to make the price format in xx million Chamby for 1 dollar. It seems to me that this is easier to perceive than counting zero after the decimal point... but I may be wrong.
--------------
I'm glad that ajanwalker has been so active from the start. Maybe we should make him our ambassador.
I am planning to increase the reward amount as soon as I am convinced that there is an interest to this contest demonstrated by the community. Moreover, I don't have an experience of sending CHAMBY to someone yet, that is why I decided to make this first prize not so big, because if something goes wrong, It won't be such a great loss and I will be able to resend the needed amount.
--------------
At the end of this week, on Thursday-Friday, I will analyse the activity in this topic. If it is still low, I will extend the application period for one more week.
--------------
I believe, that price format we use right now is quite suitable. After all, we know that right now CHAMBY has 7 zeros after coma, and we can only focus our attention on the last four decimals. I find it more convenient to check than xx million Chamby for 1 dollar.
--------------
Julien_Olynpic, you can also make your price prediction
... и тoгдa интepec y мнoгиx пoявитcя... 
