So I was wondering what some of you more technically knowledgable people thought about when/if I should upgrade. I generally use my laptops about 5 years giver or take. Currently I have a mid 2010 17" MBP 2.66 i7 with 4gb RAM and I am considering the following three options: 1. Keep my current MBP - switch out the battery and upgrade to 8gb of RAM (would that make a significant difference?) 2. Upgrade to the new 15" MBP 2.9 i7 skylake processor 3. Wait till spring and hope they update with Kaby Lake processors (which seems to be a good idea considering I keep my laptops about 5 years and the ability to handle 4k video / power consumption) Any thoughts/opinion would be appreciated. Thanks!