The E46 M3 sold almost 2x the E92/3 M3 numbers in the USA alone, and that was without a Sedan. Considering the global economic meltdown, it is understandable but nevertheless disappointing.
I think that this will be the last of the "affordable" M3 as BMW will continue to push the M3/M4 to a price bracket where it simply does not belong, IMO. The closer the M3 gets to the 911 in price the less attractive it will become.
-2015 F30 320i, Imperial/Oyster, 8AT, ED
-2012 E92 M3 Jerez Black/Rust Brown, M-DCT, ED: Gone
-2008 E90 M3 Melbourne Red/Bamboo, 6MT: Gone
-2007 MK5 GTI United Grey/Grey, DSG: Gone
-2004 E46 M3 Carbon Black/Cinnamon, 6MT: Gone