Buying a refurbished product has its own pitfalls; here are several things that you should know.

The Hard Disk

The hard disk, which stores your data, is considered the most delicate component in the MacBook. When you consider that it consists of several disks that spin somewhere between 5200rpm and 7200rpm, you start to realize that moderate bumps or drops can cause potential damage to it.

Some of the tell-tale signs of a failing hard disk include loud "clicking" and whining noises. If you can feel significant vibrations on the palmrest of a MacBook, it could be another sign of an ailing hard disk. In these cases, it is safer to replace it.

Warranty

Always seek out some sort of warranty for any refurbished MacBook that you buy. Whether or not it is 7 days or 7 months, having a warranted product will certainly give you peace of mind.

One useful tip with warranties is to be sure to thoroughly test every feature of your product (even those you might not use everyday) after you purchase it. Chances are, if it is defective, you should be able to tell.

Buying New?

Sometimes, buying a refurbished MacBook might not be the best solution. Try shopping around on sites like Amazon and eBay; you might actually be able to find a brand new model for just a slight increase in asking price.

Not all refurbished MacBooks are cheap; because of the costs to refurbish the product, provide adequate instructions, ensuring all software is present, packaging it and delivering it to your doorstep, the price might be hovering close to that of a new MacBook.

Once you've made up your mind, stick with it. A MacBook is a very good investment, as countless other users have already discovered.