The NM vs EMT cost was studied in an area near me a few years ago. It is an area where the local code requires EMT for single family dwellings. It was found that for the typical 2000 square foot tract house the EMT installation costs a about $500 less than the NM installation. Given the house cost of $140,000 to $160,000, you don't even notice the cost of the EMT.
Don
