I agree that the rush to move to USB only connectors is short sighted, and really doesn't save very much in component costs (a few dollars for three MIDI jacks and a standardized circuit board).

Manufacturers either need to return the MIDI jacks, or make it so that you can hook two keyboards up with a USB cable and it work IDENTICALLY to the old 5 pin DIN connectors. Currently, you MUST have a computer in the middle... Doh!