Well I went into a Leica dealer - Harrisons in Sheffield (UK) and said I want good workhorse not interested in cosmetics.

I came out with a great M3, with minor dings & marks and has served me well for 15 years. When it hit a tree :-) cracking glass in viewfinder the repair estimate was quite high, however actuallity was well under the estimate as the camera had been well serviced, presumably before I bought it.