The Leica M Monochrom:
Love it, hate it; but it is there. If B&W is your thing, that is.
Jacob Aue Sobol is a Magnum photographer. Whether that is good or bad, is another issue. Whether Jacob's use of the Leica Monochrom and the results appeal to you, is a matter for the individual.
But here is some of Jacob's work:
http://www.auesobol.dk
I thought it was interesting.