Yeah, my Zenith has the Cbox but todays motherboards have a lot more USB ports than ones from my CT's era did.
Vinces PC had headers for 6 front mounted USB ports and if you've got 2 optical drives, a media reader or MFP (multi function panel) and a bay bus then you're left with the choice of you either lose your front wire ports that are part of the case or lose the last free bay. And besides, if you want to hook something up to your forward USB/Firewire ports then the case door has to stand open all the time or you have to remove it. That's just unacceptable IMHO, I know too many people that have devices they hook to their forward USB ports either for days at a time or as near to permanent as you'd care to get.
The reasons they don't run off the rear ports are varied from not having easy access to them to having the rear port compliment full. Yes there are hubs but some hubs don't meet the USB specs in the ability to power USB devices unless you hook a wallwart to it and there's another negative, the stupid wallwarts take up 2-3 plugs on your surge protector.
Anyways, I'm just giving you my thoughts on why it's a bad thing not to integrate the ports into the case and I'm sharing the thoughts of the actual end user of the case and her reasons for not caring for it.