<p>Yeah, I think it would be worth it to take the exam if you're already taking the class.</p>
<p>I should amend my previous negativity to say that if you're planning (or even considering) a double major, credits from humanities APs can really help. (Thanks to AP English, AP USH, and AP Gov, I get to take 3 classes second term senior year and still graduate with two bachelors' degrees!)</p>