I had two absolutely perfect, mint, looked like new Minolta CLEs. Kept them in dry boxes with no batteries when not in use (like all my gear). Both cameras worked perfectly when I put them away. (you can see where this is going). First one, I pulled out, tested it, sold it. Did not need two I had decided. The other one a few weeks later jammed on me. Shutter would not fire, film would not advance. No-one would touch it apart from a repair man called Dave Easterwood. He eventually fixed it after about 6 months. Lost faith in it, sold it. Then got contacted by the person who bought my other one who had the same failure. He found me because I posted about it. Anyway, put him in touch with Dave. While I like the camera, pretty much turned me off it. It seems that age and it's electronics are not a good mix.
The M5 can be serviced in the US by DAG, Sherry Krauter, Gus Lazzari or Leica NJ. I'm sure if you dig hard enough (Zacks?) others can too. Is service expensive? Sure at about $300- $500 BUT the camera is now much cheaper than an M6, and IMO far superior. No flaring finder, spot metering, full exposure readout in VF, made of brass (no zinc and plastic), last in the line of the old school Leica construction - adjust to fit.