The only problem I can see with Qatar hosting the WC is that they're building all these new, big, state-of-the-art stadiums which are going to be pretty much empty/not used after the WC. Lets be honest, Arabs aren't the most fanatical of their domestic football. I'm sure there's alot of fans for the Premier League, Serie A, La Liga and Bundesliga, etc. But when it comes to their own leagues and clubs there's not much there. The sport isn't developed enough yet IMO.
Whatever, that's what the Qatari's have to deal with. I'm sure they can pull off an exciting and beautiful WC though.