But with any setup, you need two cables (no matter what type).
One to receiver and another to TV.
So it's practical in case that your PC is far enough from TV/receiver.
Anyway it's good to have more features.
What is more important for me is video playback ability/quality, so HTPC is built around C2D + 9400 IGP. I tend to forget that i have no more ATI GPUs at home.