With the manual modes coming into Android and IOS recently, the weird "processing" delay will be gone and there isn't really anything to justify showing off your Leica in public.
Should I avoid being seen in public with my mechanical wristwatch? My mechanical metronome? My 2010 Mac Book Pro? My 1963 Fender Jazz Bass?
Fundamentally, they're not obsolete. These are features that can't be duplicated without some clever additional device.