Although auto trannies have come a long way, I still prefer a manual transmission. To me, it's just more engaging. I think you'll hear more people regretting not getting a 6MT versus the other way around.
So if you are even thinking about a manual transmission, DO IT!
'09 e90 AW 335i M-sport
BMW PPK 1 with performance gloss black grilles
ZMP, ZPP, ZCW, iDrive, CA, Logic 7