LM4F freaking sweet USB examples

I don't think anyone has gone this crazy with USB examples.
* A USB to serial CDCACM device? And complete with control lines? Who would pay $13 for a Stellaris Launchpad, when they can get the same on ebay for $3?
* A USB bulk benchmark? Who in their right minds would even bother about benchmarking their firmware or software? This is completely useless!!!