For all you twenty-tenners (except FireDancer, who's explained how he uses whichever version makes the most sense in the context) - how have you said the last ten years? Twenty-oh-oh or two thousand? Twenty-oh-five or two thousand five? So, why change now?

I've been saying "two-thousand, ten."
I've been saying "two-thousand, ten."

I've been saying "two-thousand, ten."

