It is interesting to note that none of the brigade that will be sad to see ADF go are actually serious IR flyers.
Everyone of us with an IR flying proper IFR all the time cant wait to see the back of the NDB/ADF kit and that none of us actually fly pure NDB approaches and all use the GPS overlay.
As IO540 points out ADF was made for a day one nothing else was available, now the military would not even consider its use.