That's the standard price for the mavic and remote and charger and one battery that you can find almost everywhere, including direct from DJI, Best Buy, Apple Store, Amazon, and most other places. I've never used Geekbuying.
Personally, if I were to purchase another one, I'd get it from somewhere that I can easily return or exchange it, just IN CASE I happened to get a lemon out of the box, like Best Buy or Amazon.