I just got back from Costco in St. Charles, IL where they had a really good deal on USDA Prime Top Loin (NY Strips uncut). I picked up one for $96...after the $25 off it came out to $71 for 11.4 lbs. That is $6.30/lb for USDA prime!! Note that the best price per pound would be with the smallest package you can find. But you are on Slickdeals and I probably don't need to tell you that...
The only advertisement was sheet of paper above the meat that said $25 off per package. The deal also said Dec. 18-20th, I believe. Maybe through the 21st... But I need to verify.
Not sure if it is everywhere, so YMMV.