Oh, I see. To be fair, I signed up and paid $20 for a membership many years ago; it's a one-time fee to never have to worry about saving receipts, which is a massive win for me since I shop there so often, and to get the dividend which inevitably amounts to far more than the one-time $20 charge.
So, to be fair, I don't recall being pushed, since it made sense to me, and they wouldn't push me now because I'm already a member.