Honestly I would make the choice based on price rather than "features".
I can tell you from way too much experience with this sort of thing, a LOT of what you see on manufacturer sites are, well... it's all marketing buzz. Which really shouldnt be trusted.
They tout a "better" screen, but as with 4K TVs, the vast majority of users by far either wont be able to tell the difference, or the difference will be small enough that it's nowhere near being worth the price increase.
On top of that, even if the screen genuinely is a good bit better, it's only worth it if you plan on doing a LOT of the portable mode, which is the only time it matters. And that has... issues. Be warned that the thing is a rather uncomfortable device... it is NOT well designed from an ergonomic standpoint OR a functionality standpoint (the godawful layout of both the sticks AND the buttons can seriously impede pretty much everything... I dunno what the heck they were thinking), and just looking at it I see every single one of the problems that the original version has (they're very obvious even just from a visual standpoint)... as usual, Nintendo doesnt learn. They never do. The Joycons are also likely to be inaccurate and have problems... just to put it in perspective, "joycon drift" is a VERY common (and game-ruining) issue with the current ones, but ol' Nintendo literally likes to pretend that "it's not a real issue". As a company, they are like that. Great games, crappy everything else. They've honestly ALWAYS been like that, right back to the NES days (those things never worked right and broke if you looked at them too hard). Dont expect the Switch in handheld mode (or the Joycons in general) to work to the quality of a real controller. I gave up on the Joycons entirely a long while ago and consider them totally useless. They only get used for like, maybe 15 minutes on a plane trip and that's it.
Though, the more important main point I try to make about the portable mode is that it's a fantastic way to screw up your hand/wrist/arm from too much use. Yes, it's that bad. Oh, you wont feel it at first unless you already have issues, but... take it from me, that invisible damage adds up, and once it finally triggers, it's incredibly painful and usually permanent. I made all those mistakes with other devices a long while ago, and it's part of why I go to physical therapy. I *definitely* recommend heavily limiting use of the thing's portable mode. Very heavily. Handheld gaming devices have always had issues with this, but the Switch is particularly problematic for it. Dont get me wrong, good games on it, but... the docked mode is really where it's at. With a real controller (the joycons are EVEN WORSE if used in their disconnected state).
All of that is why it's honestly probably a far better idea to simply buy the cheaper option, whatever that is... you're getting essentially the same device instead of paying more for a bunch of marketing buzzwords.
Now, this would all be different if the thing actually had a POWER increase, as it's always been rather weak... but this model does not have that (nor would I have expected it to). And if it did, it'd be drastically more expensive.
In the end, just be sure to think very carefully about your purchase. Dont trust marketing, and dont even trust "expert" articles on the subject (particularly when the thing isnt out yet). And think even more carefully about how much the upgraded version is truly worth. Frankly, I sure wouldnt say it's worth the $50 increase that the article mentions.
Please note that I say all of this as someone who does indeed have a Switch, which I quite like... in docked mode. While I can sound quite negative it aint like I hate the machine.
I wonder if current Nintendo Switch games would play on this model
I'm sure they will, all of them. Nintendo can be a very special brand of stupid sometimes, but even they wouldnt make THAT mistake.
