Yeah! it probably is a bit cynical, but you should look at the whole picture. As you have pointed out the fixed cost could be around $140/ hr, but dont forget fuel. You only get the cost of the aircraft back if you sell it so as long as you have it, you have to include its cost as a running cost. Also in the future it is increasingly likely that the resale value of aircraft will fall damatically assuming you would be able to sell at all. You are quite right about not being able to put a dollar cost on a "hobby or enjoyment" but by the same token its better, I think, that people relalize what they are letting themselves in for
before rushing out and making a very expensive investment which will never have a positive monitary return. As you say though, you cant put a dollar figure on pride of ownership and enjoyment.