Many years ago Costco was selling AA GCs at 10% off, a super deal for me when I flew AA.
A 10% discount is nice.^
Yep, that’s how I got to EXP for under $1500 on the triple EQM offer between ORD and LAX/SFO.
There were dozens of us doing the same thing, meeting every day in Admirals Clubs, guesting each other in, etc.
Costco also had Hyatt GCs 20% off around then. Coupled with Costco Hyatt rates (Hyatt Lisle, IL $39 with $25 food/beverage per stay) and Faster Free Nights, that was the giveaway of the decade.