The other big problem as I see it is that the lateness of the project and the price increases, whatever price it comes out at it will with due respect be as cheap to purchase or cost less to run than an F16.
The late arrival at the ball of the F35 has meant that a number of countries have had to do major maintenance on their older generation aircraft reducing the available budget and the higher than anticipated running costs when factored into austerity budgets will no doubt reduce the number of airframes purchased.
I am sure that the F35 as initially puffed to the world, cheap to purchase, cheaper to run than your old aircraft, fantastic as a fighter even better at Air to Ground, that the project made eminent sense; sadly it seems to be late, over budget and not as capable as it was initially expected to be, not that we really know what it is presently capable of.