I went with my Mom to an outlet mall in Las Vegas while on vacation last June, and we found the same thing - actually, we went to a Converse store because my cousins wanted Converse shoes, and there wasn't really much of a deal? Maybe $5 off or something?
In the meantime, I did do well a couple of years ago when I happened upon an Ann Taylor Factory store at an outlet mall in Colorado - it was "Black Friday" and Ann Taylor was running a 40% off everything deal, and this was *also* true at the Ann Taylor Factory store. There were definitely some really good deals at AT Factory, though I think it's possible (not sure?) that not all the clothing is the exact same stuff as sold in the regular AT stores. No matter, I got some truly lovely, good quality tops and at a fantastic price.
That said, what you're saying about Nordstrom is so true. I'm noticing more and more that I can actually get a better deal from Nordstrom in many cases. I used to try and get shoes and such from Amazon, or off-price internet retailers - and lately, I'm finding better stuff and better deals at Nordstrom. Their website is excellent too. They're giving the big internet companies a serious run for their money in that dept. as far as I'm concerned.
I'm not convinced on the outlet malls anymore.