Sam's Club has the Shark Ion Robot (linked above) for $179 on Saturday, May 12th, for their savings event. This is $100 off their retail price of $279. The robot has Smart Sensor Navigation, a remote, charging deck, and comes with a boundary strip. I've been using the ION Robot for about 4 months and my wife and I love it. We have 2 dogs and a cat and it cleans the hair like a champ.
Just thought I'd pass the deal along to those who may not be members at Sam's club. You'd need a membership to purchase or you can pay 10% on top of the retail price.