Well if anyone has been on the fence and wanted to try this but the price was a little too high.. this may be the month for you.
"Tobii Partner Month starts right now! Together with our partner SteelSeries we’re making offers you can’t refuse. During the month of March instead of Tobii EyeX you can snag this bundle which includes SteelSeries Sentry eye tracking controller for $139/€119, with Tom Clancy’s The Division, plus we are throwing in free shipping."
Kicker is... the ObsidianAnt code still works.. which drops it another 30% which is $95/€83 with free shipping (which for me was $25)
and according to the Tobii Developer Zone "The sampling rate, the hardware platform and the firmware is the same for the EyeX Controller and the Steelseries Sentry eye trackers. With the latest firmware I believe it averages around 60 Hz when the tracking is good (few lost data points)."
So you get Tobii selling the Steelseries Sentry and a code for "The Division".