The answer whether the current Magic Keyboard is worth it or not NOW is moot because of the new Magic Keyboards that are coming around the corner next March 2024. The reason is twofold:
1 - If the new Magic Keyboards come at the same price of the current ones ( I doubt it but u never know) then depending on the enhancements of the new ones, they might be worth waiting for over the old ones.
2- Even if they are more expensive than the current ones and Apple keeps the current ones in the lineup in order to meet customer
regarding the current price point (or maybe they will keep the current one but knock of the price as they are not the "premium" option anymore ), you still rather wait till March to decide whether the new current ones are still worth it then.
However, if you really want a Keyboard NOW, and do not want to wait till March, then , if you aren't going to be typing a lot and most of the t8'e you will use the IPP keyboard less, then Logitech Combo Touch is by far a way better value than the Magic Keyboard. U see , the main problem (for me at least) of the Magic Keyboard is that it doesn't really protect your expensive iPP. When its on it, the MK is quite frail if u drop it and the iPP can fly out of it if u drop ot while its open. If you are using it Keyboardless then the iPad is "going commando". There are of course some iPP cases that blend beautifully with the iPP in conjunction with the MK ( like the Pitaka MagEZ Case 2 , for example) but all of these cases, since they are designed to work with the MK, leave one side of the iPP unprotected in case of a fall.
The Logitech Combo Touch fixes all of the above problems (with a couple of tradeoffs, watch reviews for it) but regardless offer way more value for those who want to be keyboardless most of the time but also have some protection. Also it's cheaper, and the typing experience is comparable to that of the MK.
FYI: I would know as I frequently use BOTH, the Logitech Combo Touch and the Apple MK. The 12.9 IPP iPad at work has the MK, and my own home 12.9 IPP has the Logitech. ... the Logi takes the cake in most usage scenarios. The only time the MK goes ahead is if you want to type while putting in your lap, and if you want to charge while using the thunderbolt port 4 for something else (which is a non issue if u have a dongle, which you probably should anyway for most serious iPP usage)
Just my 0.02