Link? I have to admit it has been some time since I compared services, but that sounds like the first TB, a highly unreliable CDN, some stupid low number of simultaneous connections, or some other such lame artificial resource limitation.

Where I live you can get dedicated GBit transit for ca $310 /month. If my calculations are right, that would be ca $1 per TB of monthly data transfer. You can probably get it cheaper, but these prices do not leave much margin for the hosting provider, and are basically "self hosting" prices. You should look for unmanaged VPS's and don't expect much support.

If you are in Europe, scaleway.net has a 200Mbit flatrate - for 3$ if you take the cheapest offering.