Dear Ben,
For a camera to USE I'll take black paint any day, because I'm going to use it long enough and hard enough for it to acquire a patina. My MP is already getting there after a year from new. My black chrome M4P looked so awful after a year from new that a Leica dealer friend asked why I hadn't returned it under guarantee -- and after c. 20yr hard use it looks worse.
Besides, if (as you aver) you only want a camera to USE, why do you care what it looks like, as long as it's unobtrusive? My cameras are 90+% use, the remainder pose value, and ALL my black paint cameras (Leica MP, 2x Nikon F, Olympus Pen W) score 10/10 for both usability and pose quotient. Unlike the loathsome black chrome.
Cheers,
Roger