Vista64 Business vs. Vista64 Home Premium

[Seik]

I'm looking to build a new PC over Christmas due to the annual hardware price drop that occurs this time of year, and a question sprung to mind when browsing OS's.

Microsoft Windows Vista 64-Bit Business for System Builders Single Pack DVD - OEM
http://www.newegg.com/Product/Product.aspx?Item=N82E16832116211

Microsoft Windows Vista 64-Bit Home Premium for System Builders 3 Pack DVD - OEM
http://www.newegg.com/Product/Product.aspx?Item=N82E16832116205

Why is the Business edition so much cheaper? What's the catch there? Also, I will be using 4+GB of RAM, so the 64-bit is necessary.

Thanks in advance from an OS newbie.

 

[masteraleph]

Because you're comparing a "Single Pack DVD" on the Business side to a "3 Pack DVD" on the HP side- you're looking at buying 3 Home Premium DVDs/licenses. What you're looking for is http://www.newegg.com/Product/Product.aspx?Item=N82E16832116204

 

[DeaconFrost]

Yep, that's the difference. Although, if you do plan on owning/upgrading three systems, the 3 pack is a much better deal than buying three of the OEM licenses separately.