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> Free ingress, expensive/hard egress.

Let's call AWS's "Free ingress, expensive/hard egress" business model as the AWS roach trap pattern.

"Roach trap pattern" is actually a great name.

I’ve heard it called the Hotel California pattern.

"The first one's on me, friend."

Pretty much every single network provider offers free ingress or egress. That is the industry standard pricing model for paying for bandwidth.