Price difference after tax is about $350ish. I like the idea of force touch trackpad, and the 10 hr battery vs 8 hr, but the processor seems significantly better in the 15 inch. GPU area was confusing to me, as it's Iris Pro vs Iris 6100. Not sure which is better. I'll be getting whichever computer in 16GB RAM, $1579 256GB SSD, 16GB RAM 13 inch, same configuration in 15 inch is $1899, but yields a better processor. I plan to use the laptop for occasional once a week video editing (using a dedicated pc for some work), email, browser multitasking, and running RDP. I should probably mention the files I edit are from a GH4 in 4k.