yoda-sama said:
Computers good enough to handle Full HD video can be put together so incredibly cheap anymore, I just don't get it...
Fans. At least in my case, I want my movie watching experience to be such that, during a dead quiet part, I can truly hear a pin drop. Fully fanless systems with no moving parts, powerful enough to handle full HD video, are pretty pricey items (I've shopped them). Even then, I find a shiny disc to simply be easier, if you have it.
Others may have other reasons for forgoing the HTPC route.