$80k? Even at Hetzner, which is one of the more expensive hosters w.r.t. transfer, this costs less than $1100.

If you directly run traffic agreements with ISPs, and peer directly, you can get below half of that.

Where are you getting those moon prices? AWS? GCP? Never use their prices to get a fair estimate, AWS and GCP's prices are orders of magnitudes off from a fair price. Unless you're in Silicon Valley, running systems yourself at a traditional datacenter will always end up cheaper. (The issue behind that being that Amazon and Google have to pay far higher wages than you, and you can cut out a middleman)