One of the easiest ways to save on your next dji phantom, inspire, vs mavic is to simply use a cash back rebate program such as this one http://www.mrrebates.com.
Mr Rebates offer 3% cashback by simply signing up for their free cash back rewards program.
2 other ways:
Purchases a DJI product under your account for 1% cashback:
You will have to make your own account first.
A Second option is:
DJI Educational discount for .EDU email address: