Not necessarily true -- maybe for the X1. However you can get a similarly specced T450s for less than a 13" MBP. I just bought a new laptop and did comparisons

Not necessarily true -- maybe for the X1. However you can get a similarly specced T450s for less than a 13" MBP. I just bought a new laptop and did comparisons between Dell, Lenovo, and MBP. I ended up with a Lenovo T450s (one SSD running Windows 8.1 and another m.2 SSD running Ubuntu).