When it comes to electronics, newer, faster, and better models of everything from computer processors to cellular phones appear at least every six months. The evolution of technology means manufacturers are incorporating more features and more power into virtually every type of consumer electronics. When you're in the market for consumer electronics - whether for yourself or as a gift idea for someone else - the question becomes, do you need to buy the latest and greatest?

As an example, let's take a look at digital cameras. Virtually everyone is making the switch - if they haven't already - from film to digital. Seven mega-pixel digital cameras are everywhere, and single lens reflex digital cameras are poised to dramatically drop in price within the next twelve months. With the dozens, if not hundreds, of models from which to choose, does it make sense to buy a top of the line digital camera?

Not necessarily. The type of digital camera you need depends on how you're planning to use it. If you primarily use a camera on vacations or while traveling, the most important feature might be the weight of the camera. The ultra-thin, lightweight digital cameras now on the market may not have all of the features of their heavier counterparts, but they're perfect to stick in your shirt pocket and pull out at a moment's notice.

If you take most of your pictures outdoors, an LCD screen with backlighting - and a viewfinder - might be the most important feature for your needs. There's nothing more frustrating than not being able to see what you're shooting. On the other hand, if you primarily use your camera indoors, a red-eye reduction feature is a must-have. If you want to use your camera at your child's soccer games, a digital camera that allows you to take short movies might be perfect for you.

You also need to consider how you'll be using the camera when it comes to selecting the appropriate picture resolution. Most people don't really need a seven mega-pixel camera; and you definitely don't need one if all you're going to do with the pictures is view them on your computer monitor or post them online.

Unlike jewelry, where more is almost always better, consumer electronics don't need to have every single feature in order to be useful. Let's face it: most of us only use a fraction of the power and features in our computers and software. So, when we're buying consumer electronics, it's important to think through which features we'll use and which are extras that add to the price but not the value.