Having done both the JAR and FAA IR's in the last 6 months I cannot understand why we JAR land persist with outdated NDB, the needle gently meandering +/- 5 degrees of track on finals if you are lucky, and that's without any Coastal/Lightning/any other effect. As well as the potential for short term errors by pushing/pulling the needle in the wrong direction dependant on its orientation.
You have the option of GPS with RAIM Integrity, backcourse ILS, with vertical stepdowns etc. why on earth aren't we using it? Astonishing! Christ my mobile phone is good to about 3 metres these days.