Vikingod

We write a lot of articles here at AnandTech about the latest and greatest hardware. Computer enthusiasts like that sort of stuff, but let's be honest: your average person would read one of our articles and probably end up scratching his/her head. More importantly, it's unlikely that a large business is going to read an AnandTech Buyer's Guide or Price Guide and decide to go out and hand-build 150 computers. Doing a cost benefit analysis on that would show it to be a waste of time and money.

That's how OEM companies like Dell, HP, Gateway and others came into being. With their assembly lines and bulk discounts, large OEMs are able to deliver more computers in less time, while still delivering reasonable quality. The standard warranty and support that comes with OEM business computers is also catering to that market. Note that we're not talking about their home computers, which is often a different story.
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Read More / Source: AnandTech