Those are graphics servers used by outfits like Pixar or NASA. If they would run Windows (which they won't) you could encode an hour of AVCHD in a few seconds.
Let's do the math. A quad-core CPU will run about 50 Mflops (50 followed by six zeros), and this server will do 13 Tflops (13 followed by twelve zeros).
It's a kit & it's for starting hard-core processing.
"Back in the day" $15k for a rendering SGI machine was dirt cheap, they went up from there. It would be like saying "video editing starter kit" that's $30k because it includes burners, printers, a nice machine, lots of software you could ever use, etc.