I have an upcoming business trip to a conference for a full 5 days... Here are my choices... 1. 15" rMBP and IPP with Apple Pencil and Apple Keyboard 2. 15" rMBP 3. IPP with Apple Pencil and Apple Keyboard Yes, total 1st world problem to have. I am leaning toward's #3 as an experiment..... Thoughts ? Anyone use IPP with no computer for 1 week alone yet ?