Well, I'm thinking of it like a video game. Once you choose your character's primary skill sets (usually by virtue of selecting a certain class or race), you want to keep adding points to that set. You don't want to add points willy nilly to other areas in which your character is not specializing, and at which your character will probably never be the best.
Gotcha. For me, I already have the mind. I'd be dynomite if I only had a heart to go along with it. At least that's what all my exes say.
NTJ's are the only types that have ever made me feel emo.
ENP's are the only types that have ever made me feel like a sensor.
There are two great days in a person's life - the day we are born and the day we discover why. --William Barclay