Hmm, Ive been to one before and it didn't seem like they had any special stock for the event. If anything, it was more like they brought out all the junk for the event... but idk, maybe I just have a bad NR.
I think all (or at least most) NR are participating in this - however, I do recall having the same impresion as above: not really anything new is added on the day they mark as "Big Brands Event". Actually, I have more luck with NR on a just random non-event visits...then again, my NR isn't so great.
Just go back from Nordstrom Rack at the Mall of America. They had a bunch of premium denim (7 For All Mankind, Citizens of Humanity, William Rast, Joe's, Rock & Republic, Paige, Hudson) on sale for $59.97. They were tagged as "previously altered," and a few had been obviously hemmed to shorter inseams. I got a pair of Dojo's, and they fit and look like my other Dojo's. They also had at least 6 Marc Jacobs bags marked down an additional 35% off (the Rack price was already 50% off the Nordstrom retail price). Sorry, no pictures--I did not have my camera with me.