iRobot Roomba 4210 Discovery Vacuuming Robot, White $180 today only!

iRobot Roomba 4210 Discovery Vacuuming Robot, White $180 today only at Amazon as the deal of the day (Sunday). Free super saver shipping. A brief product description courtesy of Amazon.com:
* Robotic floorvac with dirt detection and convenient infra-red cliff sensors
* Auto adjusts to any floor surface; 2-hour continuous cleaning; easy-to-empty debris bin
* Edge-cleaning sidebrush; stasis sensor; virtual wall for confining to designated area
* Rechargeable APS battery, 3-hour charger, 2 virtual walls, 2 air filters, and remote control included
* Measures 16-3/4 by 21 by 5 inches; 1-year warranty