CB Pro: 2017 vs 2018 models

invalid@example.com (RebusCannebus), RebusCannebus
Sat, 21 Jul 2018 01:38:05 +0000
Samsung Chromebooks

Being on a budget, but still wanting a CB Pro, I'm considering an open-box 2017 version. As near as I can tell the only differences between it and the 2018 model are that a) 2017 has 64GB storage vs 32 on the 2018, and b) 2018 has a backlit keyboard (I think). Am I missing anything? Thanks!