It makes no sense because it doesn't fit your needs. If you want a tablet you can hold all day long and switch to a "laptop" for a few hours, SP4 makes sense.

It makes no sense because it doesn't fit your needs. If you want a tablet you can hold all day long and switch to a "laptop" for a few hours, SP4 makes sense. If you want a laptop but for a few hours a day, you'd want a light tablet to read or do research on, Surface Book makes more sense and the clipboard is much lighter than the SP4 as well. In addition, you can rotate it around while attached to the base to use it as a drawing surface as needed. SB/SP4 strikes a difference balance for different people. For me, I use my tablet as a content consumption device all day long and rarely type, so SP4 makes more sense than SB for me.