Is Nirvana redundant?

I'm confused over Buddhism's lack of afterlife, yet belief in rebirth. * https://buddhism.stackexchange.com/questions/26/if-there-is-no-soul-how-can-there-be-rebirth * https://buddhism.stackexchange.com/questions/7733/what-happens-to-the-five-aggregates-after-death?lq=1 * https://buddhism.stackexchange.com/questions/10485/consciousness-in-nibbana From reading answers given on this site, there is no rebirth of the self or consciousness. Logically then any concern of either suffering from bad karma in a next life, or being reborn as an animal is unwarranted. Although apparently death leads to rebirth, Nirvana appears futile as life will continue to reproduce unhindered. Life is far more effective at producing more life than death is. What does Nirvana offer that death does not? It would seem they both lead to oblivion.