War wasn't necessarily fun. Flying for hours on end, boredom/frustration etc..
AH attempts to model a lot of aspects of war accurately. Unfortunately the last two are not outweighed with benefits that war would provide: benefits, congratulations, peer admiration, new equipment as a result of effort - basically a usuable roleplaying mechanism is needed.
Thus, boredome and frustration are all too common in AH with little reward. Flying 15 mins to die in 30 secs is no fun - especially when it means nothing to me (score = nothing really), or to my team/country. Even if the country does win the arena is reset like nothing happened..
I realized a couple of months ago that this is why I became bored with AH. I still played/payed though just to see if I could recindle my interest. Unfortunately this has not happened so I will be waiting either until new interesting equipment comes along, or a decent roleplaying system.
To give you an example how important roleplaying is - I used to play EQ for hours, just sitting there waiting for a spawn. Yes it was dull but there was always the fun factor, the fact that I knew I was improving my online persona.. gaining abilities or/and better equipment. There is none of that here.