That's why Apple maintain their high quality, and everyone else produces rubbish in their standard ranges
So today I am using a macbook air to test some software I am in an airconditioned office. In fact, I am using that MBA to type this post. When it gets a bit hot, the kernel starts taking back CPU cycles in order to cool it down. As a result, any application you are using starts running like a dog. This is a common complain from the MBA users in the current org I am working with. Easy fix is to stop the kernel taking back CPU time, but surely that has to be detrimental to the reliability of the machine or why would Apple do it? The cooling system design in the machine is clearly flawed.
Dont be fooled. Not everything apple makes is of high quality. Much of their stuff has design flaws, like every other product out there.