2013 ceremic Sub ....is this worth getting at $10,200?

[TheVision]

Hi all

Been negotiating this deal which comes with box/papers (dated March 2013). It's in original unpolished condition and runs cosc but no servicing done yet.

I have a pending offer for $10,500. Some light swirls ,etc on case and bracelet but nothing directly visible. However, from a close up picture, the cyclops seems to have hairline scratches ..again not obvious during wear but it's there. Hence seller has agreed on this price as the last gen is still averaging about $12+.

Even though seller says watch is running cosc, am I still supposed to send this to Rolex for a service or will last me another couple of years at least? Also, does the cyclops require a full crystal replacement from Rolex? On hindsight, I guess if I have to do a full service myself later, I guess the deal is no bueno?

Thoughts? TIA !