Still a popular great little zoom camera.
I have 3 - Z3 cameras. Purchased 1 new, then later found 2 additional used; sent in to DJI and had them fully refurbished to insure proper operation; so essentially new operational, placed on shelf as spares. I haven't looked at them lately to verify, but I recall 1 had a small scuff on bottom side and the other clean untouched... both in Z3 cases.
I'd consider selling 1, what price range where you shopping?
Feel free to PM