...they are securing the future for their people after their oil supplies diminish - which I read some where that it was about 100 years.
According to a National Geographic special I saw about the islands they're building, their oil will be gone within 15 years, not 100. That's why the crown prince is going crazy building all this stuff, because they have to establish tourism income quickly.
Speaking of the islands, if you guys haven't heard of those before then you're missing the most impressive engineering feat of the entire Dubai revolution. By building all of these man-made islands, they've expanded their coastline from a meager 40-something miles to just under 1000 -- a 2000% increase. Check out the Wikipedia article about the Palm Islands and try to wrap your head around some of the numbers.