just curious, why do you want the Q10 if you don't know what all the outputs would be used for?
Lots of recording stuff is done outside the PC (using external effects units, compressors etc), and you want to be able to route your tracks out of the PC to do various things to them. Some people record to tape after editing all their tracks on the PC, and want to mix them with an analog mixer. Like I said, if you can't think of why you would need all those outputs, why are you about to spend that much money? Do you need that many inputs, or would a 2-in/out system be enough for you?