Belgian hog uses 2.7TB, but how much money is that?

Ars Technica has the Belgian Bandwidth Hog story and even credits me, thanks Nate, but one element is missing, what does the little piggy cost?

2.7TBybte is roughly 9 mbit/s sustained traffic.

• 1mbit/s/month of transit is $1 wholesale now in London and Amsterdam through Hurricane Electric -->9 dollar
• If you would work with a day and night rythm for the traffic, where the average peak is about twice the average--> 18 dollars. --> do understand that an ISP like Telenet will use peering too, which would result in a lower bandwidth bill.
• If you buy the traffic up front from a hosting company 20 euro per Terabyte retail --> 54 euro
• If you need to buy the traffic because you went over the traffic you bought up front it's 50 euro per Terabyte retail. --> 135 euro

So the top downloader in Belgium is most likely still profitable to Telenet... though marginally