Thats a bit unfair on NearlyFreeSpeech: the first gigabyte is a dollar, but the second is $0.870, and it drops from there.

From [2] in the parent post: After you've transferred You get up to 1 GB 1GB / $1 ($1.00 / GB) 10 GB 2GB / $1 ($0.50 / GB) 100 GB 3GB / $1 ($0.33 / GB) 1,000 GB 4GB / $1 ($0.25 / GB) 10,000 GB 5GB / $1 ($0.20 / GB)

Check out https://www.nearlyfreespeech.net/services/bwcalc for a calculator.