Is the panasonic leica dg 12mm f 1 4 worth buying used?

Here is what the site says about that.

From Panasonic Leica DG 12mm f/1.4: Panasonic Leica DG 12mm f/1.4: A prime lens by Panasonic for Micro Four Thirds cameras, 12mm f/1.4. Specs - Maker: Panasonic - Focal length: 12mm (prime) - Maximum aperture: f/1.4 - Made for: Micro Four Thirds sensors - Mounts: Micro Four Thirds - Stabilised: no - Autofocus: yes What it frames like - On Micro Four Thirds (Micro Four Thirds): like 24mm on full frame; f/1.4 gives about the depth of field of f/2.8 there. ...

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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