Why does itunes have to be such a pain in the bum???!!!?

Why on earth can't i just simply transfer music to my iphone? What is with this big production just to get music on it? I have had my iphone for about a year and have less than 10 songs on it because of the enourmous pain in the a-s-s- it is to get music on it. What is with all this synching? Well no, itunes, I didn't want you to spend the next 4 HOURS of my life copying (why???) all of the apps that are on my phone onto the computer. All I want is to drag and drop a song I downloaded on amazon. WTF?