Well, just like all of my other guns, I would like to shoot the 10ga. at paper and stuff. Yes, I have a 12ga. 3.5'' and know what they are capable of. I've just always wanted a 10ga. and once you get a "want" itch, its hard to scratch it with anything else.
As for trucks, I know plenty of guys who program their computers for play, then go back to the factory settings when they hit the pavement to save gas.