There are certainly a number of people who would buy this for that reason. But I think of the people who are particular about vacuuming, many more of them won't

There are certainly a number of people who would buy this for that reason. But I think of the people who are particular about vacuuming, many more of them won't buy a robot at all. I can't imagine selling millions of this because of people who care enough to have straight lines but not enough to do it themselves. The scale really does matter too. Software and hardware are very different businesses. If they don't get to a sufficient scale, their cost per unit will be higher, and their margins much smaller.