You can get stuff done in New York that you can't in Los Angeles. If you wanted to get some milk and get your shoes repaired and drop something off at the dry cleaner, that's an all-day adventure in Los Angeles. In New York, you can bang that out in half an hour.
I've never had my dexterity called into question, but I think if that was ever the case, I could acquit myself by tossing a ball back and forth horizontally between my hands.