Lived over there for 5 years in the 80's and believe it's pronounced oo bare tee.... Honestly the Italians don't really care how you say it as long as you are forking over some cash......
I've always said oo-bert-ee.
My high school latin teacher said the "U" was "oo", so that's the way I've always said it. She was right (and you failed if you didn't agree ).
I voted for "get a life though".
Not many guys here with the sense of humor or the juevos to put that in a survey.