Last year the difference between the 11 and 11pro seemed worth having two models. This year it really doesn’t seem like there’s any point given how the standard 12 has caught up without the pro doing much to maintain the gap
I actually started to reply in agreement with this comment, but then really dug into the comparison b/w the 12 and the 12 Pro, and the differences are actually a bit more substantial than at first glance (though nowhere near as substantial as the 11 and 11 Pro). First, the 12 Pro starts at 128GB, whereas the 12 starts at 64GB. So to compare the two, we need to first push the 12 up to 128GB - which adds $50 (which is a pretty awesome price to double your storage).
The 12 Pro 128GB is $999, and the 12 w/ 128GB is $849 - so what are you getting for $150 more? A decent amount actually.
The biggest difference is obviously the camera - 3 lenses + LIDAR vs. 2 lenses. Next up would be the screen - the 12 Pro has a max brightness of 800nits whereas the 12 is only 625nits. The 12 Pro also comes with 6GB of RAM vs. only 4GB for the 12 - it's hard to say how much of a difference that will really make, given how effectively iOS manages RAM usage (I will say, however, that I have an iPad Pro 2020 and that has 6GB of RAM - I've noticed a pretty sizable increase in the speed b/w switching apps vs. my friend who has the 2019 iPad Pro with only 4GB RAM). Finally, and this is extremely minor, the 12 Pro has stainless steel sides and the 12 has aluminum sides - arguably the aluminum is better than the stainless though, as aluminum is more durable and less prone to fingerprints.
So, to sum up, for an additional $150 you get a better camera system, brighter screen, more RAM and stainless steel instead of aluminum sides.
Now the real question is, are those differences actually worth $150? If you're really into photography, I think yes. Everything else you may not really notice on a day-to-day basis, but having a telephoto lens can make a big difference when taking pictures. But, if photography isn't a big deal for you, then the $150 probably isn't worth it.