Aside from the US/EU pricing discrepancy being unfair (I am in the USA if that matters), the game as a whole is overpriced in any currency. There are free browser games that put more effort into their titles than FC does into AO. Not dissing the current GD at all. I don't think they get near the support or resources needed from FC to progress the game with more than superficial changes or additions.
I feel like this game should be free with an interesting item store that people would want to spend money on ( not just "buy" credits on...) or about 7/month max.