Nope. They need nukes as insurance and blackmail. With nukes they try to raise the price of oil, get control of the entire region and wage a non-nuclear war against Israel via Hezbullah and Hamas missiles. Israel's deterrence of nukes will be made up with with their nukes. And most importantly the mullah regime will have an insurance against any attempt to topple the regime or destabilize it.
Their goal is making the "islamic republic" dominant and unassailable in the region.
Their apocalyptic rethoric is bluster and propaganda. They are evil, not suicidal. If they launch a nuke "once they get it", it will be retributed by Israel and the West at once. Ahmadinejad may be a nutty apokalyptical crazy, but he is not calling the shots.
Disagree. Fanatics are not predictable.
You are wrong. This is why Iran is so dangerous and why secular Westerners can't see the danger.
To many people in the West, that whole religion thing is just... nonsense, and no one really, I mean REALLY, believes in it. So they must be using it as a means of propaganda. And since they don't really believe in their religion, it's not dangerous.
But consider if they do. How dangerous is even one nuclear bomb in the hands of a group that beleive that if they destroy Tel Aviv then their god will send his angels to help them wipe out the rest of their enemies once and for all and establish them as the rulers of the world?