[gabeeg]

In my games I always have a couple airstrikes available. The recon value is tremendous IMO (though a cheaper scout plane would be more appropriate), that and an airstrikes ability to do pinpoint damage to a unit unlike arty. I do not find arty all that effective against armor where a properly led strike with accurate aircraft is (stukas, typhoons, etc.). Aircraft can be expensive so I would not suggest buying more than a couple units/strikes and keep them in your pocket for when needed.