I agree with you chrome! That is also a huge reason I chose Pioneer over Kenwood's so I can hook up my interface and subwoofer amp through the preouts.
It would be cool if Kenwood had 3 sets and an SD slot? (Maybe it does but I don't see it or read it on spec sheets) and the .3" screen size difference is also notable.
At the $450 price point its really up to individual style and preference. I plan to load a 64GB SD card with music/movies and have at it every time my HU fires up rather than even mess with my iPod/iPhone, but for those of you who prefer music streaming via Pandora w/o a direct input you may love Kenwood!