I think turbos might be more complicated hardware-wise, perhaps... I imagine software and tuning will pose maybe a little more in the wat of complications. I mean, you need wastegates and blow-off valves, and oil/coolant lines, not to mention the packaging problems (I remember reading GM tried turbos' on ZR1 but had "thermal issues" or something.
I'm old school, and just like the look of SCs better, however, there's no denying turbos' are more efficient.
I'm not sure if I'd like seeing turbos' on the next gen' 'Stang, but I welcome most any poweradder