Oh joy, another game that lets you purchase an advantage with dollars. 
I enjoy the free aspect of WoTs. I doubt I will ever pay for those advantages but at the same time I dont think it is a bad economic model.
I only wish I could button up in the tank. I dont see a airborne version of WoT as a real threat to AH but it wont be a great help. Perhaps it will be the motivational driver for AH 3.0