Disney will use any excuse-perhaps reasoning or justification is a better word? to raise their prices. I don't mean internally, everyone knows why they really raise the prices, in order to benefit the shareholders. No, I refer to how they justify the increase to their guests.
Oh people become irate whenever a business raises it's prices, no one is ever happy when prices are higher, however I feel Disney fans are very loyal, and extremely passionate so whatever Disney does, fans react emotionally. Which is why I don't find it surprising when people defend vehemently whatever Disney does, even when it goes against their own best interests.
Pulled out my travel diary. We were there for a week in June 2001 with a group of 21 people (family reunion) and it was packed, and then again for 10 days in July (over the 4th) 2002 with a group of 11, also busy.
I was not there immediately after Sept 11 but that is the time you are referring to and I don't think that time can be considered representative of the popularity of E ticket nights. That was nothing normal about the extraordinary circumstances during that time.
Waltgirl