I'm totally with you on this. On both my iPhone and Macbook I don't change the desktop background or much else from the day I get it. There are other things like the terminal colors and such that I do but for the most part I leave the design alone. Now, customization is obviously very important to people and if it is then that's a great reason to switch to a platform other than iOS. But is it a reason that iOS is worse or better than some other platform? Absolutely not. There is room in this world for things to just be different rather than better or worse.