While Brisbane is usually the most convenient and economical port of arrival for intercontinental travellers, Gold Coast Airport is well-connected with direct flights to most major Australian cities, as well as destinations in New Zealand and southeast Asia, so it's usually the best (ie cheapest) option if that's where you're coming from or headed. Backpackers and other budget travellers should also note that getting to Gold Coast Airport on public transport is only $3.60, compared to more than $30 to Brisbane.