To learn the correct technique in the shortest possible time it is not necessary to buy an extremely expensive guitar. In fact, the beginner is not yet able to really appreciate the difference between an average guitar and a high-end one.What really matters is that the instrument has a solid build quality, a good playability and a good resonance.In light of this, we can find good nylon-string guitars for beginners starting at a few hundred dollars,  while metal-string guitars are usually slightly more expensive, ranging from AU$500 to over AU$1,000.