Nagoya 2010
My wife is from Nagoya. So, she is a native speaker of Nagoya-ben.
She talks to me in Nagoya dialect and accent. That hasn't changed a bit since we first met in Nagoya.
After living in Hokkaido for more than quarter of a century, she has acquired Hokkaido-ben quite a bit.
Sometimes I feel she is a more skilled user of Hokkaido dialect than I am. You know, she must have a gift for languages.