A photo of a 10-year-old Zojirushi rice cooker still being used every day is getting plenty of attention online — and prompting a familiar question from shoppers: Is buying cheap really cheaper? On Reddit's r/BuyItForLife, the post racked up comments from people praising appliances that keep working long after lower-cost alternatives fail. The post showed an image of a decade-old Zojirushi rice cooker still in daily use. But in the comments, Red…