Just out of curiosity:
Why do better wedding photographers need a camera like a Leica S007? There clients are no photo-professionals at all. And even if they wanted very large prints, they wouldn't see the difference.
They don't "need" one... they'll get one for several reasons! Here is a few:
1. Most of them use a Contax 645 with film for a part of their work and they'll be able to share the lenses which will shrink the equipment they have to carry a lot since using Leica S007 with a "C" adapter will be (almost) like having another C645 body but with DSLR feeling and an MFDB on it...
2. They'll be able to finance the body by only selling their DSLR systems...
3. They'll be able to have video ability using the very same lenses.
4. For prestige reasons... for many customers "if he has a Leica, he is even better than the better ones"... that, (if correctly marketed) can both expand the annual number of customers but make them able to rise (further) prises and justify that rise... Add to it, that they'll do less film shooting.
Most of all though it is the equipment shrinkage... Believe it or not, having only one bag with a 35, 80, 140 & possibly the 45-90 Vario, or the 45, or the 55 and be able to just add another (digital) body in the bag, which is quite compact too... is a real blessing for them! Particularly if it allows them to do all Digital, low light and video shooting with only four lenses!