Lowes daily deal today has a nice entry level Roomba 690 for $299. On top of that, you can use lowes coupons to take another $40 off, making it $259 plus tax. Plus another 1% at at least one cash back site. They also have the iRobot Roomba 650 for $279, and with the $40 off coupon, that makes it $249. The higher end iRobot Roomba 860 is on sale for $379, minus $40 (or $60 if you can find a $21 filler for your cart like paper towels or TP), makes it $339. The Roomba 880 is also on sale, but not as big a discount as the other models, as it is $499, minus the $60 coupon, making it $439.
Free in store pickup and possible free shipping if you have myLowes account (free to sign up).
Lowe's coupons - https://slickdeals.net/f/9549456-lowe-s-10-15-50-off-online-coupons-sharing-only-no-off-topic?v=1
Don't forget cash back site for additional 1% off.
Brickseek 690 http://brickseek.com/lowes-invent...u=50171545
Brickseek 650 http://brickseek.com/lowes-invent...u=50171545