Costs of airplane maintenance
As a layman, I find it surprising why the costs of airplane maintenance are so high. One would think that with computer aided manufacturing, producing parts for jet engines would be cheaper over the years. The reverse seems true, the US Airforce is complaining that the costs for maintenance of the 707 based airframes are sky rocketing in the last 20 years, overhaul of a single TF33/JT3D seems to cost one million dollar.
Maybe the market is not working well on the supply side.
Where I live, a decent house including the land, can be bought for $ 200.000,-, the price for a twin engined 787 jet, is about 1000 of such houses. This does not make any sense to me.