I've monitored my bandwidth usage. I fits in the 250GB per month bandwidth.
However, I can also look at my router logs. The router logs have entries for constant port scans and messenger SPAM from malware infected computers on THEIR network. This is NOT included in the bandwidth measurement I have taken because they just bounce off my router.
If they don't exclude these unsolicited attempts to connect to my computer/network, it will distort the statistics of my bandwidth usage.
This idea is not going to work very well.
I think that companies that have TV content provided through other channels (such as Comcast/TimeWarner/et.al.) are trying to limit the adoption of Internet TV and other video Internet sources that are already available in Europe in order to maintain their revenue.