One of the main reasons why iPhone feels so much better than other cheaper phones, and it makes heat dissipation much better as well.
Everybody can make it work, but only few can offer great user experience. If you have experienced a BMW and a common car, you know what it means heat dissipation much better as well.
If one step does the job, why two? If one screw does the job, why more? It’s simple to make things difficult, but it’s difficult to make things simple.
When we need a flat screen, we don’t want to see a bendy one, which can be really annoying because we need flat screens most of the time.