Valentina Palladino / Engadget
iRobots Roomba j7+ is $250 off, plus the rest of the weeks best tech deals – A bunch of new tech sales cropped up at the start of the week for things like robot vacuums, game controllers and more, and many of them are still around today. A trio of iRobot devices remain discounted, with the most affordable of the bunch coming in at $179. Some …