Neatness of install/Expandability - As I started adding new features my install started to get really bulking with project boxes etc at various points in the car. My current set up is much neater with just one box in the trunk. For example to deal with the various power logics I had a project box with a bunch of relays ie control when the eee, usb hub, screen, back up camera stops getting power. Another for the external harddrives, inverter (basically for 5V power), hub, fans etc. I see that mentioned expanding with soho etc so just a heads up.