Actually PC sales seem to be leveling off to me. Down 11% in 2013, but only down .8% in 2014. I can also understand 2015 being slow, some (like me) are waiting for Windows 10.
Did you see what the quality the late laptops have? If I could buy (in 2010) a _decently built_ basic laptop for 400, today the only well built laptop is Macbook.