Hey, I have a mid-2012 13” MBP 2.9ghz 16gb ram and love it. Got it because it was the last user MBP with user replaceable memory, ssd, and optical, etc. (even though i know you can upgrade the SSD chips or whatever in newer MBPs). Anyhow, it’s been great and I am keeping it but need a second laptop one with a 15” Retina display. Not looking to spend over 850 probably would prefer to spend under 700. Do I target a 2013-2015? I cold just go after a 15” 2012 Retina seems you can find them for under $500 but they getting kinda old. Thoughts?