because as it is right now, there are 3 methods of capturing video from a PS3, from easiest to hardest:
1) S-video. You just need a $20 TV card and DScaler, as long as your computer is awesome enough, it can record 720x480 video in realtime. Bad quality (what we have now)
2) Component. component capture cards are more expensive. I've seen them as low as 90, but for one that actually gives decent results it would cost $170 or more. The video quality we'd get would be analogous to a current SD rip that was deinterlaced
3) DVI/HDMI rip. HDMI capture cards run about the same price as component capture cards, with the added bonus of being able to capture up to 1080p. Only problem? HDCP. HDPC was designed from the ground up to make it impossible to use such a device to rip copyrighted video data. Would give excellent quality, but is impossible until someone cracks HDCP.