My guess would be that this space has become way more competitive in the last few years. If you haven't noticed, there are a lot of robot vacuum cleaners on the

My guess would be that this space has become way more competitive in the last few years. If you haven't noticed, there are a lot of robot vacuum cleaners on the market now with more coming soon. https://www.amazon.com/s?k=robot+vacuum&ref=nb_sb_noss_1 https://www.amazon.com/s?k=robot+vacuum&ref=nb_sb_noss_1