It's fun, but I'm not sure it's a good thing for those who don't understand what's happening. That said, my wife and I flew out of Heathrow some years ago on a flight with R/T available on one of the audio channels. There was an engine oil warning light at the holding point and the discussion between the crew and their engineers was quite scary and the cabin went very quiet for a long time!!
As markjoy suggested, this would be better on aircrew forum...