I'm sure at some point, either you or someone you know fell sucker to some marketing line that made them dish out extra cash for something they don't need. This is alarmingly common on the PC hardware scene, where you need to realize that buying a $500 video card isn't going to make your 8-year-old computer into a top-of-the-line machine.
And while that sort of misunderstand might have become common knowledge in recent years, there's plenty of other confusing marketing speak to be aware of. Tech ARP has compiled a list of PC hardware myths to avoid in '08. If you're the type to consider picking up new computer hardware, it's definitely something you'll want to read – you never know if it might save you some money.