It's a good alternative. Dollar will always stay. I hope Bitcoin will come even good known as the dollar and the euro. If everybody found his way to the BTC, the future looks good.
Maybe for the next few decades Fiat currencies will stay intact, but in future it will be cryptocurrencies .I don't know will it be bitcoin or not, but cryptocurrency is the future.
Lol thats the funniest thing i've read today. What are "dubai rich people" going to do? the only reason they are rich is they were lucky to be born with oil sitting on their ass, that's all. Those guys aren't inventing anything new and groundbreaking, let alone anything that would ever compete against Bitcoin's supremacy.