In this lineup, the first two models are the 8th generation processors whereas the top model (starting at $1799) is the one with the latest 10th generation processors (but that still comes with a stingy 512GB SSD).
Another thing is that SSD storage on Apple Macs is expensive, and they can no longer be upgraded after purchase (since they have the T2 chip and are soldered on to the logic board). This would be kinda ok to put up with just for the combination of hardware and software, but poorly designed software makes the experience worse. Photos and videos take up a lot of space, and Apple's default app, Photos really sucks. You can't move the photos library to an external (cheaper hard) drive and live peacefully. If you do, then you might find yourself unable to eject said drive because there are background processes that launch themselves and keep your photos library in use even if nothing has changed and even when you've let them run for a day or a few days before to finish). Apple seems to be doing a terrible job on the software front (I don't even want to talk about other issues in Catalina). Is there any other alternative for photos on Mac that works well and can also import photos and videos from iOS devices (on to an external drive)?