Take a look at how expensive a Kaleidescape movie server is sometime.

These things are for people who spend $100000-$5000000 (yes, that's 5 million) on their home theater setups.

Besides, even if you got all the hardware for free, you'd still have to pay one or more people $100000-$500000+ to write the software to even attempt to duplicate some of these solutions. And if you're going to do that, you might as well start making boxes by the hundreds/thousands and selling them.