I have a dear friend living in Canungra who was looking for a buy-to-let property there. Of course, he was not aiming for the top spots, still, I remember him having to look nearly for a year until he found a suitable place. Supply and demand as someone said, but patience is involved also.
If you can predict the future trends, it makes perfect sense to do so. If you do not, then stick to professional advices, or you risk losing some of your money.