Terror in the UAE?

The United Arab Emirates is a very rich country, and somewhat modern. So far they've managed to avoid terror attacks at home. Now the British government is warning its citizens that they may be at risk. Frankly, I have wondered in the past why attacks take place in certain areas. Yemen has an al-Qa'eda cell and gets attacks. The same for Saudi Arabia. When the US was attacked on 9/11, that was a "big message" from the terrorists. Dubai is a major symbol of modernity and wealth in the Arab world. So why hasn't it been attacked yet? Is it that difficult, or is some of the funding coming from there? I'm not a psychologist, but I would think that Bin Laden would see Dubai as a symbol of Western decadence, or something like that. Yet things seem to be peaceful over there. So is Dubai a ticking time-bomb or a source of terrorist funding?