Pertronix rtr distributor vs. ignitor III

I'm looking to upgrade my ignition system and i've settled on pertronix as a quality budget ignition system, but the question is, which should i go for, the nice billet distributor or just the ignitor system? I'm sort of leaning towards the ignitor for the sake of having a rev limiter.

Also, do i need a points distributor for the ignitor system or can i convert the current electronic distributor?