World Cup in South Africa

I didn't really like the fact that the last world cup was in South Africa. Don't get me wrong, it's a beautiful place and rich of culture; but the fact that so much money went into that country just for soccer. That country is not a very wealthy one. The use of all the money for stadiums could have been used a lot better in my opinion. Billions of dollars were wasted because now they don't even use some of the stadiums because they cannot afford to maintain them. So now what are they going to do to them? Who knows. But they will be left in ruins. I believe that the world cup should be held in countries that have somewhat of a decent economy so they don't just leave the stadiums empty forever.
South Africa did gain a lot of money because of the tourism and people that went to go watch it. But all of the money that they made would only be for that time. When again will they make that type of money?