'Hempy' it's got nothing to do with 'demand', there's plenty of demand there for sure the demand for cheap fares with all the trimmings & lots of flights to chose from that's the demand, trouble is the Airlines are their worst own enemies, they are shooting themselves in the foot daily with ludicrous cheap fares that are unsustainable just to undercut their competitors trying to drive them out of business & the fools at the top of some Airlines are trying to make it work by thinning out the cost of doing business, IE less staff more work. It's like the structure of a bridge, you can design a bridge of lessor material to do the same job 'cause it's all about cost but you keep taking out a little bit of the structure here a little bit of the main support there & the next thing you know you have a collapsing bridge/defunct Airline or one that is struggling to hold its own weight never one the weight of it's customers.
Stick with the fundamentals of life, invest where there is a future where people have foresight even a slight one (not found here in Oz) & aviation isn't one such business as there's no vision, Govts & their greedy grubby corrupt ways have killed off any vision we are ever likely to have here.!
Wmk2