Benefits of having a PR visa:
You are free to live and travel anywhere within Australia
You are eligible to pursue higher studies and can apply for certain educational loans
You are eligible for Social Security benefits after two years as a PR visa holder
Your children born in Australia naturally become its citizens
You can sponsor the PR of your relatives provided they meet certain pre-requisites
You have the right to apply for government jobs
You have the right to travel to New Zealand and can even apply for a visa there