I bought a new 2015 13" rMBP with 2,9 Ghz i5, 16GB RAM and 1TB SSD. I bought this machine as I use a Thunderbolt display at work and at home and also do a lot of video conferencing at work from a meeting room. So far so good I also travel a whole lot - 3-4 times a month on a plane. Now I wonder if I should get the rMB as a secondary machine for travel. Does that make any sense? Besides the second purchase I would also need to keep my data in sync (not a big issue with email and cloud drives). Any advice if it is rational to use the 13" rMBP for home/work and the rMB for travel? P.S.: Do not want to consider an iPad - basically went through all iterations, but need a proper Mac when on the road and the iPhone 6 plus serves fine as touch screen device.