This highly complex, cord-free robotic cleaner promises to autonomously scrub your pool, giving the illusion of total domestic control. Every shiny new expat in Pescadero is acquiring at least six, because it’s the only visible way to scream, 'I pay more than my neighbors for things that eat dead leaves.' However, the moment it encounters a high tide, it will simply become a $1,200, uselessly buoyant piece of advanced plastic litter.