Does the 180 have the usb port? I know the 165e doesn't. Are you going to use it mainly to sew or embroider? If embroidering, ask how will you get the designs from the computer to the machine. I have the 165e, it is a good machine but I hate the black and white screen (embroidery designs). I had to purchase a box to save the designs to a card and then put the card in the machine to embroider.
I upgraded a couple of years ago to the 730e with the color screen which I love and it has the BSR.