Aamir didn't earn the superstardom with a film or two. It was a continuous and restless effort and he is reaping the benefits now. Most of the superstars tend to follow the beaten track. For example Salman Khan is one of the biggest stars in India today. He is doing formulaic films and non brainy ones and has been delivering a string of hits.
Almost all the superstars in Tollywood are following Salman Khan in this aspect. They are not willing to experiment like Aamir Khan and slowly build their careers. Everyone here wants instant craze. Therefore we have far too many Salman Khans and not even one Aamir Khan!