Another simple example. I bought a zojirushi water bottle 5 years ago, it is still going strong, still keeps water cold for a hours and hours. I bought another

Another simple example. I bought a zojirushi water bottle 5 years ago, it is still going strong, still keeps water cold for a hours and hours. I bought another bottle 3 months ago, which is much heavier/sturdier than zojirushi. It sucks (it is so strong that it can be used as a weapon though).