Yeah I mean I've given Uno some eyerolls on other posts but I agree with this logic here, and my own experience bears similar fruit. In the last 3 years on my 2011 Mazda3 I've had to get 2 new motor mounts (early 2017), ABS control unit (late 2017-2018), and fuel pump (late 2018). Those costs were north of $2000 IIRC, and I'll be hitting 120k in the next month. Up until then everything has been fairly good.
The only reason I haven't dumped it yet is the want for a bigger down payment on a CX5 to keep monthly low, so I've been doing what others say they do without the warranty - using the new car fund as a source for repairs/maintenance. But I will say, if the next repair is 1k+, I probably will dump my 3 early, go from the planned 60mo to 72mo, and getting a warranty with it for the same reasons that Uno has.
@Uno - I've also heard the auto-folding mirrors can get stuck and start breaking in 3 years or so, especially with ice, so with your luck, you can add that to your list of reasons to have gotten the additional warranty. Also, is recalibrating the cameras/safety equipment covered in the event of needing to replace the windshield for cracks/chips? If so that's another pretty penny.
For what its worth I think you made a reasonable and logical choice given your situation.
Congrats on the ride - I'm still on target to join the club by Q4, maybe quicker now that I've cut the cord and Verizon gets a good deal less from me for TV