Site Devices

New mobiles in stores?

I was wondering, how often people actually buy mobile phones, while there is a new model released almost every day. Okay, maybe not every day, but for sure 1-2 models a week we will see if we follow closely all the mobile manufacturers. Who buys so much? Does it pay out to invest in development of a new cell phone model, knowing in half a year from now it will already be outdated and there is no big chance of actually selling your model, since the competition is enormous. I am really curious but unfortunately will never know the answer!