I tend to reload save games when I screw up badly, normally after I took a risk, I've never been tempted to when playing AI War, maybe because you can always re-capture that planet, or rebuild that fleet.
In other games, if you lose a item you can't get it back without a lot of effort, or maybe you have to "roll the dice" and it turns out bad, especially when the dice roll wasn't free... in this one you never get that, every win or loss is down to you and never because of bad luck or bad timing, actually when I think about it like that the reason I reload save games is because it just feels unfair to have lost, to be honest AI Wars is the most relaxing game I've ever played, which is odd seeing as it is an RTS, and not only that but also so, so much less frustrating.