I think speaking for myself, as a person who drives a manual transmission, my learning curve will be; Not having control of my clutch.
For those who drive a manual transmission, you might know what I mean.
Your stuck behind traffic because of a s-l-o-w truck. But wait! There's a red stop light ahead and the right lane is clear (move-to-right lane to get into position). You're waiting for the light to change. With hand on the gearshift, left foot on the clutch... "GREEN"
You strategically match the gas-to-clutch ratio for optimum torque as you leap forward, catching the truck by surprise... whining out first, you slam it into second and change lanes just as the right lane ends. VICTORY! (the crowd cheers! "HUZZAH!"), and the 1992 Chevy Metro can breath again.
That's the thing I've always enjoyed about a manual transmission. The fun of shifting with a clutch. When a computer operates the clutch... I don't know... I get a feeling it'll just be "average". The "edge" will be missing. The whole “fun factor” equation has changed.
Just like coming up to a really steep hill with a stop sign at the top, it's both fun, challenging, and a bit of skill to operate the gas-to-clutch power-ratio under abnormal conditions. I'm sure I will like my 451 when I get it... it'll just be an adjustment.
Having absolute control of the clutch is just as important and fun to me as shifting. For me they are a grouped package.
This is like the guy trying to answer the question of, “Why do you like riding a motorcycle?” To which he replied; “If I have to explain it, you wouldn’t understand.”

-Tom L.