IF/When I get one I plan on using it for everything from hunting to target practice. I don't mind it only being a 10/20 mag either. I'm more interested in being accurate and being able to hit targets at a long distance than being able to spil a bunch of lead down range. Plus, IMO, the M14/M1A all decked out with a rail system/scope etc is one of the sexiest guns I've ever seen.
Seriously holy shit. I don't plan on mine looking like that, but damn if I could afford it I'd do it and then just stare at it all day.