If so, you should buy a lottery ticket if you think your issue qualifies as the worst travel day of your life. AA found you a creative routing and got you to DFW a few hours late. Considering you were on a hub-to-hub cancelled flight, that's pretty darn good for any airline. If you had a subscription to EF, you might have been able to find something better yourself but as it stands you didn't make out horribly.