Several hours ago, I bought a Melitta electric water kettle at Target. I drink tea occasionally, and an electric kettle is handy to have for heating up water quickly; much more quickly than a kettle on a stove. Just pour water in, turn it on, and a few minutes later, after boiling begins, the kettle turns off automatically. You have to be much more careful with a kettle on a stove; it boils slower, and water can boil over if it's unattended.
I know that electric water kettles are rare in the US; growing up, we thought electric waer kettles were mildly exotic, since you would only see them in Canadian kitchens. What other kitchen appliances are relatively common on one country, but nearly nonexistent in another? (Let's limit this to developed nations, so people don't chime in about the lack of ice-dispensing refrigerators in Chad, or the rarity of microwave ovens in Sudanese kitchens.)