The main reason is our country is too SMALL. The whole country is just as big as or even smaller than a state of USA, China etc. They have the population to do anything they want. The quality and quantity is there. Just look at American Idol, Miss USA, Olmpic game or any competiton, the semi final quality is better than our's final. Why? because they are selected from 50 over "countries" (state actually). While we only have 1 countries which is smaller than their state.

If don't talk about quality, then quantity also a lot more than us. How many cities in US or China? Just 1 person buy from you in a city is few hundred thousands or Million. Here is barely hundred, the rest are kampung.