Curious if the OP considered an MY Performance?
MYP wasn't even on my radar, neither was the X Plaid to be honest.
Story time.
Back in the day it was the hippy wife that kinda started all this. We were looking for a 3rd row SUV and looked at the Highlander Hybrid that was new at the time but the 3rd row tightness got vetoed by the in-laws since the car seats (at the time) would have to be on the 2nd row.
Flirted with an X but I vetoed the price at the time (oh how future me would change his tune!). So we just got a '16 Accord Hybrid sedan for her and called it a day.
P3D was announced and I mid life crisis ordered one to replace my MK7 R. I'm a sucker for quick off the line AWD cars.
Tried to get the wife back on the X wagon after we had the 3 for awhile but she has road trip range anxiety and the added inconvenience of having to plan in stops and the added time got the X vetoed again.
Plaid S comes out and dear gravy do I want one. How they utterly and completely decimate cars in the 1/4 and on highway rolls is just nucking futs. Plus they just keep pulling. I love my 3 but I've gotten used to the performance and a bit bummed how quickly it dies up top, yes I'm spoiled. So I knew if I was gonna upgrade to something it was gonna have to be a pretty revolutionary step, not just a small incremental one. I then started selling myself on all the other niceties of the S, the heat pump, air suspension, height adjustable, vented seats, more room in the rear for the soon to be teenagers, the refreshed look so it'll look like my 3 but better, etc.
I put the S plaid on the back burner though, wife was very displeased with the price. As luck would have it the Tulsa showroom was getting a S Plaid to demo thru March and it was EXACTLY how I'd want to order it. I'm super excited again thinking about the Plaid, am I really gonna do this?
So now the S train starts up again. I've worn down the wife by this point with my constant babbling about all it's specs. She agrees to shut me up by going and looking at it. I was really really hoping the back seat would be much larger than my 3 as that was gonna be key decision but nope, it wasn't a game changer in the regard.
So we leave the showroom and I'm dejected. Wife isn't a "cars are life" kinda gear head so she wasn't impressed with it at all, more dejection. But then she says "what about the X?". I was like, "sure, if it's your car, I don't want a land barge". She reverts back to the "we need at least one ICE for any road trips we might take". But, she sorta green lights the X purchase. Woot?
I sleep on it. The more I think about it though the more I get into it. We can finally have that 3rd row so we can stuff our children back there on the few times it'd be nice to take just one car instead of two with the in-laws. The MYP was a non starter since it wasn't Plaid. I had to have something faster than my current 3.
I do more unhealthy YouTube and internet searches and I pretty much sell myself that the Plaid X is right for me for my current situation in life:
+While not the top dog compared to the S, it'll still destroy 99% of whats on the road today in a straight line.
+Active noise cancelation plus double pane glass plus air ride should really make our commutes an even greater pleasure than the 3.
+3rd row for taking in-laws Xmas light viewing? Lol kinda a stretch. We'll see how often we carry 5 or 6 people.
+Height adjustable so I can look cool in low or bump to high for snow clearance the few times it snows a year around here.
+Lots more room for backpacks and sports equipment and our growing kids that I chauffeur around.
So yeah, I finally talked myself into it and had yet another mid life crisis purchase. I can't really fathom that I'm purchasing a 6 figure car. Oh well, yolo? Might as well smoke em if you got em, right?
TL;DR I wanted something faster than my Model 3 Performance, so that's why I didn't look at the Model Y Performance.