I am wondering which MacBook Pro I should get. I got 2 options here. The 2015 Macbook Pro with USB 3.0 ports or the 2017 Macbook Pro with the USB type-C ports and a touch bar. The 2017 Macbooks are around in the £2000 range whilst the 2015 Macbook Pros are in the £!000 range. What would you recommend?