Same reasons people leave anywhere:
- Some feel they should be earning the same as their Aussie Conterparts
- Some want more money (think China)
- Some want to go and fly Long Haul (bigger aircraft)
- Some hate Management
- Many of the NZ FO's are young and can't resist Air NZ for the job / career stability (who can blame them).
- Some see no future when the low cost rostering can be very fatiguing (how do you do it for the next 30 - 40 years?
What I am saying is take the job that gets offered, if you end up at a place like Jetstar then it is a great place to learn your trade and earn decent money while you try for the move you really want, if it doesn't work out trying to get into Air NZ then atleast you are in a good job while you assess your options.