The point is that even a 3.5M for the new house will be a lot, but by virtue of it's location and salaries at Apple it's justifiable
https://www.redfin.com/city/19457/CA/Sunnyvale/filter/min-lo...
2,5M, with respect to the existing market, doesn't appear to be out of the norm.
The idea being Sunnyvale can justify that with salaries and the employers in the area
The point is that even a 3.5M for the new house will be a lot, but by virtue of it's location and salaries at Apple it's justifiable