Not all feats exist to make your character into the six-million dollar man. Some of them exist so roleplayers can get their flavor on. Judge the feat on who and what it was made for, not for only one purpose.
The very purpose of much-vaunted game balance is to allow role-players to get their flavor on without penalizing them mechanically (within the expectations of the genre -- no need to balance low-Int wizards, for example). So I suggest setting aside the aspect of "well, you might want this for role-playing reasons," because, while that's absolutely true, it is orthogonal to whether or not the feat is balanced.
-- 77IM