I’m not a member and only stepped into our local Costco a handful of times over the years, however times are tough and getting tougher on a daily basis. Bulk shopping may not be an advantage for you but it may be for someone else.
I’m guessing this is a national promotion.
https://www.nj.com/business/2022/06/sams-club-is-offering-8-memberships-for-a-limited-time-heres-how-to-snag-the-deal.html