The iRobot advanced technologies have justified the high price for their products but have seen a 29% decrease in U.S. sales largely due to competition from SharkNinja. In selling their vacuums for below half the price of the Roomba, SharkNinja has grown to be the second largest seller in the industry in North America. According to representatives from iRobot, " Shark's plan has always been to copy iRobot's innovations, undercut iRobot on price, and steal iRobot's market share ". Shark's "plan" may work despite this decision, as the ban may not take place until February 2023, well beyond the holiday season when many household gifts such as robotic vacuum cleaners are purchased. iRobot has revolutionized the home cleaning devices industry. However, a monopoly is typically considered contrary to public interest.