I actually started thinking this same thing not long after I got my car a year and a half ago. Everything feels really cheap on the car.. My car was delivered with TONS is paint scratches and marring... and the tail light leaks, interior squeaks, rattles, motor hum above 75MPH, drive train slop/clunk, etc have been starting to add up in my mind. I'm very busy and trying to work with Tesla to get these items fixed is a pain. Many times I ask for fixes on things and they aren't addressed anyhow. I get an "ooops, we didn't have time to get that. Here's a free Tesla jacket that's not in your size to make up for it." The service centers don't seem to have a permanent fix for many of these issues. It's just band aid here, adjustment here, shim here, tape there, etc. I can imagine how busy the service centers are, which is extremely. They always seem slammed and understaffed every time I interact with them. As others have noted, AWESOME people, but slammed. I left a message on my SC voicemail to inquire about getting some of these issues I'm having looked at weeks ago and never got a return call. They used to read my posts and contact me about problems but that stopped happening a while back. If things continue like they are I don't see this being sustainable for them, especially if the Model X has similar failure rates and persistent problems with no permanent fixes, just temporary measures that don't permanently resolve defects or prevent failure.
When people stop me to ask questions about the car like "How do you like it?" Which is by far the most common question.. I used to say "Love it." That slowly changed into "I love it but it has its quirks." To now "How much time you got?"
I really don't want to think about going back to an ICE after experiencing the driving experience of my car.. But if all the gas savings are swallowed up by repair and maintenance costs, maybe that will be what I have to do when I'm ready to move on from this one. I'm watching my ODO closely now. I'm at 34k miles or so... Once I hit 40k I'm going to really be mindful of the mileage and you can bet I'll make sure the SC fixes all if these issues before I let the warranty expire. :-/