I am amazed I've only seen one of these ever. First saw it maybe 15 years ago, and would pass it on my way to school. When Roomba came out everyone flipped lik

I am amazed I've only seen one of these ever. First saw it maybe 15 years ago, and would pass it on my way to school. When Roomba came out everyone flipped like it was an amazing invention that nobody had thought of. All I could think of was that little yellow lawn mower diligently mowing its grass. Cute little guy is still running today. Why don't more people have these? I'm gonna buy one when I have a yard. edit: I see they are decently expensive. If they work still totally worth it.