It is a well known fact that Apple's pay is bad. They are like game studios, they sell a dream and the perception of changing the world to engineers who should be old enough to know better.
Most employees in Apple cannot afford to live anywhere close by - they commute from far away to afford a decent place. Given Apple makes close to $2M in revenues per employee, this is just sad.
Thats the case for every company in The Bay. Only the most senior of employees make enough to live in a home near work.