why do arabs flock to Knightsbridge?Watch
like this: http://www.dailymail.co.uk/news/arti...ber-plate.html
As for Monaco its very expensive so you spend all your money on Hotels and far less to do compared to a global city like London. Also London is bigger im sure plenty go to monaco aswell.
Also rich arabs speak english and the UK and UK shops are more well known in the arab world. No point on going on holiday to the hamptons if no one backhome is impressed
Monaco is nice, but London is the billionaire capital of the world. Its where you go to show off, the most fashionable place for the hyper rich. Besides if they wanted nice weather they'd stay in Arabia.