But until Fuji came with its X series, Leica was the only game in town for rangefinders. The use of a rangefinder arguably helps for some styles of photography, especially street shooting and portraits. This alone could be worth a lot depending on what one gets from photography. The was a good review by Steve Huff detailing all of that [1]
Also, until Sony pushed its more compact line up, full frame cameras were bulky ugly heavy tanks riddles with buttons everywhere (like the Nikon D3 [0] for instance). Leica cameras were the odd simple and straight to the point tools blessed by top notch sensor technology.
[0]http://kenrockwell.com/nikon/d3.htm [1]http://www.stevehuffphoto.com/2010/08/04/my-updated-big-bad-...