How can Bon Jovi justify such high prices for the O2 concerts in london?

I am a mive fan, and I normally pay �100 or so for golden circle tickets (10 - 15 feet away) so why on eart are they now asking for �1000 in a mediocre venue like the O2 in london, they wrote a song about the 'Working Man' on their new album, and contradict it by ripping people off with high prices! think they will lose a lot of respect by doing this....