A member of my household has a costco membership so we were gonna try and get me vaxxed using their member discount for the $140 price rather than the even more evil $202 price. So I called and confirmed with the Pharmacy that we could pull it off, we could not. I'm gonna have to buy my own membership, but first I wanted to confirm how much it would cost there.
Pharmacy tech: "Cash price is $39 and some change."
Me: "For the Novavax?"
Them: "Oh you're also getting Novavax. That was Flu. Let me check. It's probably the same though."
Me: "Oh, I don't think so."
A few seconds of keyboard clicks go by.
Them: "Nobody ever asks about the cash price. It's. Oh.... It's $201.99"
Yeah, that's what I freaking thought. 
The costco membership is $65, but it actually is cheaper for me to buy a membership because I can get a $20 giftcard back if I do it through the veteran's reward program. Guess I'm getting a costco membership.
This bleeping country. 
I watched a doc on costco founder and he uses a business model that is different than any other retailer. The profit the corp records comes directly from subscription fees and cc's. All the merch in the store is marked up approximately 30% above cost and is used for all operating costs. So upper management's main job is run costco at %30. The end result is you can get the best value from costco over other retail stores. It isn't a huge amount but every bit helps.
That checks out with why they limit the membership card to two people on the dot rather than to a household or give the ability to buy an extra card.