After driving my SRT6 for almost two years I don't miss a manual. The automatic inspired by AMG is without doubt one of the slickest transmissions I have ever used. It can be switched to the "manumatic" mode and you can shift manually (without a clutch of course).
I think one of the reasons AMG only offers automatics is so you can hold on to the steering wheel with both hands when you really step on it. LOL