your residual value will suffer accordingly.
Hmmm, deduct what you pay from what you MIGHT get more on resale -> donīt think there is too much of a difference. It might sell easier though (in todays market, in a 2007 market nobody cared...so...do you know how the market will be when the airplane is sold....?)
It really depends on how the owners look at it IMO, you make it easier to calculate with a program, less risk at higher cost.
My owners (not a 300 but a C680...) decided not to take any sort of program and for the time being we paid not much out of our pocket (airplane turns 5 in August, last parts of warranty running out by then)
So all in all our was cheaper up to now without program, OTOH I do cases were that was the other way round....
BTW Iīm officially jealous, a fantastic airplane you`ll get and a good steak at the 40Westt Steakhouse in Montreal when you pick it up... loved every second I flew it. (well, almost...)