I got my Pfaff 1473 CD in 1990 and it's still the one I use everyday. Love the "snail" option of sewing when showing my 9 yr old granddaughter what to do. Serviced maybe 5 times in all this time...had to have the foot pedal worked on this past year. Actually only had to change the light bulb once too and I leave it one by the hours on end.
I was told to never ever ever get rid of this machine as it was one of the last ones built in Germany and is heavy duty in addition to being computerized. This one has one of the first "plotters" so you could design your own layouts to use fancy stitches with which was a real advancement back in the day.