But the trouble is that Virgin never sponsored more than half the cost, yet insisted that the helicopter was red and no other logos could be on the a/c. So the people of London thought...hang on, don't need to contribute coz that nice Mr. Branson pays up.
Anyway, things can't be that tight in London..
News - Parliamentary Event
Quite why they would need a second one when there are plenty based around and regularly flying into London is another question though.