In my experience (limited), decisions by other state courts are brought up mostly when there are no closely relevant decisions in the state the court's in. They don't have real precedent authority, but will be taken seriously.
Roberts has NO notes - they should have said since the nominee has no notes, no one else can have them either! HA! Would have loved to see the dems try to even sputter out a question that wasn't from a DNC talking point memo!