Is the leica vario elmar sl 100 400mm f 5 6 3 worth it?

Here is what the site says about that.

From Leica Vario-Elmar-SL 100-400mm f/5-6.3: Leica Vario-Elmar-SL 100-400mm f/5-6.3: A zoom lens by Leica for Full frame cameras, 100-400mm f/5-6.3. Leica's longest SL lens; it works with the Extender L 1.4x. Specs - Maker: Leica - Focal length: 100-400mm (zoom) - Maximum aperture: f/5-6.3 (it gets darker as you zoom in) - Made for: Full frame sensors - Mounts: L-Mount - Stabilised: yes - Autofocus: yes What it frames like - On full frame (L-Mount): as marked, 100-400mm. - ...

From Sensor sizes: Is full frame worth it?: For low light, events, and portraits with very shallow depth of field, yes. For travel, street, wildlife on a budget, and most hobby photography, a good APS-C camera with good lenses is enough, and you'll carry it more. Lenses and light matter more than the last stop of sensor performance.

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