One of the first lessons I learnt in my job Shaun was to never invest a dime in flight travel companies i.e. Qantas. They have all of the cost pressures but little control over ticketing.

For example fuel prices go up, staffing costs go up, maintenance costs continue to go up, all the while the consumer want prices to go down which is supported by companies like virgin and tiger offering cheap as chips fares.

Pretty sure I read somewhere a while ago that australian pilots are some of the best paid in the world.

Even though I don't follow his work anymore, Roger Montgomery is dead against these sorts of companies and for good reason. Look up his blog and search Qantas on there if you want a better idea of what i'm talking about.