NOW, though the product title DOES say that it comes preinstalled with EL CAPTAIN (or whatever), mine already came with the SIERRA update. It had Sierra Version 10.12.3 and in the app store, you can update it (FOR FREE) with the May 2017 recent Sierra 10.12.5 update! IF yours comes in with EL CAPTAIN, you can update it FOR FREE to the 2017 Sierra update - do not worry! Lol.
Much like Apple handles support calls over the phone, soon only customers within their warranty period will be able to access online chat support through getsupport.apple.com for free. For others, Apple will charge what it refers to as a “pay per incident” fee or require the purchase of an extended warranty through AppleCare. Previously all online support chat features were available for free to users worldwide. Some users might have noticed back in August when Apple revamped its support sites that it started listing a $19.99 per incident fee for chat support. However, up until now AppleCare hasn’t actually been charging users to access the feature.