Cost neutral is a funny term. For instance, I'm using my tax refund from the last 3 years to renovate my home therefor it is cost neutral. It's not of course because I had to fork out that money that was happily sitting in my bank account to pay for it.

Spirit is paying me more money every year and I'm doing the exact same thing I've been doing for the last 11 years except I get more time off now. I doubt spirit thinks it's cost neutral. (not that I care one iota what they think)