why did you buy a gaming headset
I already have speakers, but the computer is in a place where it's really loud from other sources, so I want some headphones to use whenever I can't use my speakers without pissing other people off.
why did you buy a bluray reader
I have a stack of blu-rays, and I can't be bothered using the PS3 when I'll be spending most of my time here on the PC.
why did you buy a network card
Well, my logic was that because the modem is in another room, instead of having to do some tricky stuff to get the ethernet cable between the two, I could just use a wireless card and then not have to worry about somebody pinching my USB dongle.
Of course, that was the one part I didn't research, and people are reporting the one I bought is not Win8 compatible no matter what the company or Microsoft are saying. $20 lost.