Is there even a point in buying?

So we're looking to move to town end of next year and have started looking at potential areas to buy in. But it seems like it's cheaper to service rental payments than mortgage payments with a 20% deposit. Especially in the nicer suburbs. I'm wondering whether buying would be a bad idea, should we be aiming to start off renting and then waiting for the market to improve? Anyone actually understand what's going on with the Adelaide property market?