And the cost of capital, or a loan if you have one.
I have done a very detailed costing, several times, including the cost of all the minor things, like landing fees, Jepp data, instrument renewals (check flights), and with a plane doing 200 hrs a year, in Australian Dollars, it is about $225/hr.
In the USA that is USD$168.
Now I will concede that some costs are just naturally higher here, such as fuel and just the Australia tax
So even if you factor that in it will not truly be less than say USD$150/hr, but i am sure someone has data that proves way less for spousal purposes
Ohhh, and the VANS pricing calculator is not to be trusted. I am yet to see one anything like it, unless they cut corners somewhere.