ITT: autism
I wouldn't buy a machine that only supported 2 slots and could not be upgraded by adding more stuff.
Vorsholk has done a pretty awesome job. The penny pinchers will kick themselves when they have to buy another machine to add components.
Right, the device is geared towards people who want to set down a unit, unscrew two screws, and have something work, people who want to be upgrading and expanding systems would not be interested in this product.
Edit: re-read what you had written, I think I may have misinterpreted it. With the old setup people would still have some ventilation issues with the higher quality hardware.

I'm looking into the hardware to make 3x7950s work fine in a regular case, but it's not too promising. :\