missed this one originally ap....
as you guys have said, really all depends. i find one rule (not a hard and fast one) is to check on blackbook... if the option/package is listed, see what the difference is if you were to trade it in.
sunroof always adds something... as does leather, rims, etc. many things are just little options to help sell the car, not really get more money... like power seats on some lower level vehicles, remote start, etc... they are nice things, but they will hardly change the asking price.