The new condition price dropped since then…
The new condition Panasonic GX850 with 12-32mm goes for $550 at authorized dealers in black or white, such as B&H Photo.
But if you are comfortable with used, you can get it for $400 + shipping in “Used – Excellent” condition in the silver color scheme at Adorama. Shipping is under $10 for the slowest option. Adorama includes a 90-day warranty of their own on used cameras they offer on their website [check each product description through as some items are sold “As Is”]. They also offer a 30-day return policy. This is an “Excellent” condition, not “AS IS” (Condition X).
Here is an example of an AS IS camera, “condition X”, the Fuji X-E2S body (this is only shown as an example, it is not a deal; it does not turn ON, that’s why it’s only going for $200).
Having bought a couple of used cameras each in recent years from Adorama and what I perceive as its main competitor, B&H Photo, I trust the condition ratings of both. If anything, expect the camera to be in slightly better condition than their rating indicates.