I've seen a lot of decks run Terminate but not Dreadbore. They were competitive decks, so price wasn't an issue. Is that the right call?
Here are my arguments for why you should run each card: Terminate is an instant, so you can end-step-remove annoying things. It can't be regenerated, so **** you Skithiryx, the Blight Dragon, and most Commander decks don't run Planeswalkers anyways.