The MBP changed a lot from 2011-2015, so this is kind of a broad question. At the start of that span they were the thick and heavy unibody models with optical drives, 2.5" HDD/SSDs, and non-Retina displays. By the end they were significantly thinner and lighter, had Retina displays, and used flash storage. Also over that span the latest-supported version of the OS went from High Sierra on the Early 2011 models all the way to Monterey on the 2015s.
For a unit in proper working condition (no damage to screen, no missing parts, battery condition reporting as “good”, only ordinary scuffs and scrapes on the exterior) I’d skip the 2011s entirely, go maybe $50-75 for a mid-2012, and up to $200 (and not a penny more) for a mint 2015.
And that’s only if I needed one. Which I do not. I have plenty right now.
The MBP changed a lot from 2011-2015, so this is kind of a broad question. At the start of that span they were the thick and heavy unibody models with optical drives, 2.5" HDD/SSDs, and non-Retina displays. By the end they were significantly thinner and lighter, had Retina displays, and used flash storage. Also over that span the latest-supported version of the OS went from High Sierra on the Early 2011 models all the way to Monterey on the 2015s.
For a unit in proper working condition (no damage to screen, no missing parts, battery condition reporting as “good”, only ordinary scuffs and scrapes on the exterior) I’d skip the 2011s entirely, go maybe $50-75 for a mid-2012, and up to $200 (and not a penny more) for a mint 2015.
And that’s only if I needed one. Which I do not. I have plenty right now.
Thanks!