I say go and host it. It'd be healthy for there to be more than one convention for the competition and as a result, the improvement and feature rivalry.
I wonder what TomTheGeek is going to say about this? He won't be happy.
Pfft, so? He didn't host the first Blockland convention. Many have hosted them in the past... I even ran an event convention in 2008 for about a week called the 'Wrench Events Expo' (lol unoriginal). The more the better, especially since Tom is failing to even open his properly.