The plans listed on that page are:
Storage / Transfer / Price
10MB / 100MB / Free
300GB / Unlimited / $20
400GB / Unlimited / $40
500GB / Unlimited / $80
You must realize that these are absolutely NOT true commercial offerings. They don't even list what your commit bandwidth is!
Also you can't run your own applications there! Do you really think Netflix runs off of a shared server like this? They're a HUGE AWS customer running many thousands of VMs. How do you access control things, how do you deploy your code, how do you do basically ANYTHING with this offering from Comcast? I suspect that you don't.
Here are some legitimate commercial offerings: http://www.hostgator.com/dedicated
If you notice, they have a page dedicated to their network. What familiar names do we find on this page? Cogent and Level3! http://www.hostgator.com/network
Notice that there is no mention ANYWHERE of ANY COMPANY that might even a LITTLE BIT be considered a consumer ISP. Comcast, AT&T, Verizon, Cox, etc, none of them are mentioned.