For current owner with S'es out of warranty, why wouldn't they worry about repairs when on TMC, a brake job was $6k excluding labor costs and each handle was $1,600 each? Is it really just lemons we are hearing and seeing complaints about here on TMC?
Even a friend of mine who got a 2014 or 15 S told me he no longer recommends Tesla to friends (because of the Buzzing, Squeaks,Rattles, moonroof replacement and few other issues he has experienced) but still says it's mainly been a good experience in terms of quality of service.
My main concern is whether Tesla will still be the same company that endeared Roadster, S and X owners -- forthcoming in repair works, proactive in replacing parts that may potentially break down, honoring ESA's unlike Hyundai/Kia, where I read once or twice on the internet (anecdotal), try not to honor their 8 to lifetime warranties by pointing at other causes/points of failure (someone, if maintenance has been DIY, I can't blame the manufacturer because some problems could have been induced by DIYer).
With service, that remains to be seen because anytime the number of customers increase significantly, there will definitely be an effect on work turnaround times unless staff at the service centers will be increased and locations added.