Is the leica m9 worth buying used?

Here is what the site says about that.

From Leica M9: Leica M9: A rangefinder by Leica with a 18-megapixel full frame sensor, announced in 2009. The first full-frame digital M; check whether its CCD sensor has been replaced for corrosion. Specs - Maker: Leica - Mount: Leica M - Sensor: Full frame, 36 x 24mm, crop factor 1.0 - Resolution: 18 megapixels - Stabilisation: none in the body; use stabilised lenses for slow shutter speeds - Announced: 2009 - Type: rangefinder Focal ...

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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