Merc makes the very capable SL[500|600|55AMG|65AMG] (with slushbox _only_) for the lazy types with $90 large burning holes in their pockets. BMW makes the 645ci for those same folks.
Yeah, I think that's right. The market for a $90k car, at least in the US, is more likely to consist mostly of people who don't have much interest in shifting gears themselves. Just an unfortunate fact of the market.
The M6 (and M5, and M3, etc) is a streetable race car. Torque converters have no place here.
BMW gets villified for putting an auto in the E36 M3 sedan, but it's OK to put one in the M6? Not...
(ED 5/11/13) '13 328i M-Sport Estoril Blue II/Black, Trip Journal
(ED 5/25/10) '11 335i M-Sport Le Mans Blue/Oyster, Trip Journal
(ED 5/19/08) '08 X3 3.0si Alpine/Tobacco, Trip Journal
(ED 5/7/07) '07 335i/6sp TiAg/Lemon, Trip Journal
(ED 4/18/05) '05 X3 3.0 Blue Water/Black, Trip Journal
(ED 4/28/04) '04 545i Silver Gray/Beige