Interesting - I (British, living in another country in Europe) have just bought a new automatic car, but if I were buying used I would most likely only buy manual because the maintenance and replacement parts for an auto will likely cost much more, and a used car would more likely need these sooner - and be less likely to be covered by any warranty.

These are of course my perceptions; maybe they're correct, maybe not, but I do think it's a common way of thinking.