Bandwidth, maybe? That page is 53.8 KB total. $2k does seem high though.
If the page is 55KB, that means that a single GB is about 18K page loads, but let's make that 15K page loads due to various overhead.
To spend 2000$, you'd need to send about 22TB, which are about 330M page loads.
That equates to 330M/365d = ~900k loads per day.
> it's now grown to about 6 million hits per day, and that's just the traffic that makes it through to the landing page [0]
So he's paying a discount, even.