Baggs
Masses of info here (wiki) including this:
"The Voyager refit cost £10million and the government estimated the use of the aircraft would save £775,000 a year versus the cost of charter flights; The new arrangement was expected to cost around £2,000 per flying hour as opposed to £6,700 for long-haul charter.[12] The refit included a secure satellite communications system, missile detection, conference facilities, a changing room, 58 business class seats and 100 economy seats."
So, yeah, it costs a lot. But then flying does. Silly to compare this with holiday flights.
Someone on twitter tried to claim that it was being used by the military when not flying government ministers round the world. Perhaps as a transport plane.. With all those facilities? 