Thanks for your suggestion. Probably we are not going to do that this year, as we already have the competition running and would be hard to get budget for more initiatives, but next time we will think about it. We once had a monthly photographic contest here at ICMag (as you probably know) for about 2 or 3 years, and results were nice but never outstanding either.
Oh.. and by the way, we have not announced it yet but we have a special exclusive prize of 500,00€ in cash for the best grow diary here at ICMag. It does not compare to what you are suggesting, but it is an exclusive prize for this forum.
Thanks again and kind regards