As most things Leica the 100mm f2 is priced as a luxury item but it should be a stunning lens. Can't wait to see some images made using it. (and possibly along with the new 50mp Leica S). Those who have held and used the Leica S (and S2) know that is is probably the best DSLR ever made in regards to build quality and feel in-hand, in use. The viewfinder is just superb and coupled with the split screen focusing screen it is without a doubt the best DSLR for manual focusing.
Yes I know, it is not a good value, it's overpriced, the D800/E/810 with the Otus (or 50 or 85mm prime) can produce similar results for many thousands less etc etc but the Leica is an object of desire no doubt and price:performance ratio is not the only factor in choosing a camera for a lot of photographers if it were we all probably would be using the same gear.