Any stats on how often the ELT working would have made a difference?
Good point! From sifting through many reports I can tell that there are many accidents where the aircraft neither had a (working) ELT nor a sat tracker and where is took days to locate the crash site.
For what it is worth, having sat comms on board gives me one less reason to push on when confronted with deteriorating weather. I know wherever I land I can always call for assistance. (So does survival equipment, warm clothes and 'tons' of potable water...)