I was going to say a bow, these days gun camp is more of a great time with a great bunch of guys, but if I really want a hunt I grab my bow. But, I agree with you cupcake, the investment of time is one of the best responses that I have read in the 8 yrs I've been on this site.
I know a guy like that, he couldn't afford a call if he wanted one, but every year its no surprise when he hangs the biggest buck, or somehow brings back a bear that he shot while walking out to a deer stand; he grew up doing it, I could read books and watch hunting shows for years and not understand whats happening in the bush like he does.