It will never end. Since 1986 I have spent money on DOS or Windows computers. Of course over these years the capabilities of the devices have dramatically increased. The good thing, or bad depending on one's perspective, is that PC's are nearly infinitely expandable. That is just another way of saying one can always spend a lot of cash on upgrades and peripherals.
The latest goodie that I want is the HDTV tuner above. It the Hauppauge WinTV HVR-2250. I can attach my over-the-air antenna and then use Win 7 Media Center to record or view high-definition programs. I do that already with the Bell ExpressVu HD PVR but I do like the idea of letting my computer have a little of the action too.