For those who have everything: The LawnBott LB3500

And you thought riding lawnmowers made yardwork easy. The LawnBott LB3500 actually does the mowing for you. Basically a “Roomba” for your lawn, it operates autonomously by “means of its intelligent computer and a perimeter cable” that keeps it from heading for the neighbors’ rosebushes. When the battery runs low, the robotic mower even returns automatically to the charging station.
Price: $3,429 Contact: Lawnbotts.com
Source: Salon.com