I probably don’t know enough about wiring electrical systems, but why do we still have cigarette lighter sockets in cars? I mean, there are probably a few people out there who are still using them to light things they want to smoke on fire. But the primary function nowadays seems to be to provide power to things like GPSes, cell phones, etc. So why the useless round socket? Can’t we just have.. I don’t know.. a normal three-prong plug?