Thing is that you don't get to be as strong as Samsung with just luck turning your way. They manufacture everything. Components for their phones, and everyone other's phones. They have people that have been handpicked, and trained from birth to predict market movements. Prices didn't raise over night. They all have the resources, and could build 10 more factories and meet the demands by now.
But i'll give them thumbs up on their business logic. Let's not invest in more factories to meet market demand, create false shortage, and earn 12x more money by doing nothing.