The Adelaide market, tends to increase at a steady pace, with consistent growth each year of around 2-4% (on average). Adelaide puts on a good show on why Adelaide isn't the poor uncle. Buying in Adelaide should be dependent on your property portfolio strategy. There is a very good chance it's won't be your first best option.
What do you buy? Car or House? If you look at both markets, the answer is very obvious. However, it's also important to consider what your values are and why you would choose to go one way or the other.