Every month companies anounce a new product, a phone, a tv and so on. they promise that product is more powerful with a lot of new functions but never talk about the highest cost. In my opinion, they sell us a functions that we won't use and we thinking that we need it in our lifes, that's marketing, why has a phone 3 or 4 cameras, we don't be a professional photographer, we just want a good photo, one camera is enough, I bet a great number of people never use the properties (aperture, iso, exposition,etc) to take a photo with their expensive and sophisticated phone. Companies are very smart and waste a lot of money in ad on internet and tv to sell us the same product with different color every period of time. What do you think about it, let me know if you have a different point of view.