The only thing though is that unless you drive a really cheap car or a specialized sports car, manuals may become less and less common as the cost of dual-clutch transmissions come down and new continously variable transmissions based on Fallbrook Technologies' NuVinci CVP start to become available in the next several years.
Already, VW has been quite successful with their DSG dual-clutch gearbox, and we may see almost every Ferrari with a dual-clutch transmission within the next 4-5 years.
I have a manual VW GTI but have driven a DSG GTI, and the DSG is great and no human could possibly shift faster than the DSG (8 ms I think is the shift time for it), but the manual is still a hell of a lot more fun. I hope manuals aren't replaced with DSGs.