Hi Andy,
The CC's do seem to be more popular and although I too was intending to try a CC that was only out of curiosity after all the threads I've read on the forum. I've driven both manual and semi-auto sports cars and in the end a manual always gives the best "real" driving experience in my book.
Regarding the price differential on 2005 cars, I know there was a £1,500 premium for buying the CC and I understand that the premium gets carried through at more or less face value, for the first few years of their lives. Thinking about it, if this is a true statement, can anyone think of another optional extra that effectively doesn't depreciate with the rest of the car?