I hear they are limiting you to just one package at the moment. I bought one back in January so I’m good to go for some time. For those in full hoard mode, it might be worth buying a membership, or barring that, having someone with a membership get you a Costco Cash card which will allow you to shop there.
Like Lois in Family Guy buying a 4-pack of pianos, I might be interested in the 10-pack of LG OLED TVs in this picture...