I'm glad someone wrote about this. I have a deposit on a Model X, and this is the single largest issue that is making me lean towards not buying the vehicle. I occasionally enjoy doing my own maintenance or repair on stuff I own and my present vehicle (close to a Model X equivalent but dinosaur powered and German) has been pleasant in that regard. There is nice fully functional (though Windows) third-party diagnostic software available, the actual service documentation is available to owners (for a pretty reasonable fee), there is a bit of competition on parts price amongst dealers (though ultimately only within a certain range as they still originate with one manufacturer) and I haven't once felt like instead of owning the car I merely have a license from the manufacturer to use it. I worry after the warranty expires that I will be at the mercy of Tesla for any service and support, which is an unknown quantity right now. I've seen the terrible spot a product owner can be left in when a manufacturer decides (for whatever reason) that service and support are now their primary profit center. Not only are you screwed in that your product now costs a fortune to maintain, your product is now essentially worthless for resale because everyone knows the cost to maintain and repair it makes it uneconomical. (See, e.g. several private aircraft companies which went bankrupt)