I would be okay with that if the $50 discount were automatic, for any month where you stay under 1 TB. Instead, you pay $80/month, plus a $200 penalty for each

I would be okay with that if the $50 discount were automatic, for any month where you stay under 1 TB. Instead, you pay $80/month, plus a $200 penalty for each additional terabyte. You have to prepay $50/month to avoid the risk of a penalty. Comcast would rather make a bunch of money selling insurance, than put a fair price on data.