Is the sony fe 400 800mm f 6 3 8 g oss worth buying used?

Here is what the site says about that.

From Sony FE 400-800mm f/6.3-8 G OSS: Sony FE 400-800mm f/6.3-8 G OSS: A zoom lens by Sony for Full frame cameras, 400-800mm f/6.3-8. Sony's longest zoom, for birds and distant wildlife. Specs - Maker: Sony - Focal length: 400-800mm (zoom) - Maximum aperture: f/6.3-8 (it gets darker as you zoom in) - Made for: Full frame sensors - Mounts: Sony E - Stabilised: yes - Autofocus: yes What it frames like - On full frame (Sony E): as marked, 400-800mm. - On ...

From Buying used: Buying used: Cameras and lenses are built to last, and many photographers upgrade often. That makes the used market one of the best ways to afford good gear. A body that's one or two generations old is often most of the camera for a fraction of the price.

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