My God, people, I live in Los Angeles and they have INDEED had this offer for years at Costco - you just have to ask for the Super Sport one at your local Costco, because it is not listed on-line, like the cheaper club version is.
I bought mine at the Loz Feliz branch well over a year ago. It's no big mystery. Around here, all Costcos carry BOTH versions. Just call your local Costco and see what they have Brick and Mortar.