Raid,
I find your experience encouraging because I am a Monochrom owner. I've been using my Leica digital a lot and can report no issues. Had to clean the sensor a few times, but the dust problems reported on this forum seem overblown, but then I don't change lenses all the time.
As far as film camera repairs my experience differs from yours in that particularly with Leicas I have spent a lot of money. First off when I get a used Leica I will pay additional costs over a CLA to have the camera overhauled by Sherry and the cost includes new parts. A MP finder upgrade alone on a M6 is about $300.00. Recently I sent this M6 back to Sherry to have the 75mm Frames striped out, but at the same time Sherry deemed that my windows were worn and needed replacement.
Seven years ago after the overhaul the M6 came back stiff and loud like a new camera and through hard use it became smooth like a vintage Leica that has been shot non stop for decades. Now with the addition of the new windows I basically have a custom M6 that is better than new, but realize that my battery cover is getting brassy, the vulcanite is worn smooth in certain areas from my fingertips, and that I'm wearing partially through the chrome plating in certain spots due to my body chemistry and heavy use. Granted I have used this M6 enough to put wear on the windows, but overtime this camera has become part of me.
To me both film and digital Leicas are like owning and driving a BMW. The costs are more than other cameras.
Cal