And yes I have lots of peripherals plugged into my iMac (I too prefer wired mechanical keyboards and an Ethernet connection, along with a RAID Array and other specialized audio and hardware controllers.)
...but that's the point: the "elegance" of an all-in-one solution rapidly evaporates as you start hanging more peripherals off it - especially if you want to be able to adjust the position of the display. Ultimately, "lots of peripherals" is one of the main remaining reasons to get a desktop over a laptop (I hope Apple remember that when they hand out the ports on the new Mac Mini).
So iMac, Mini and Studio are fine but for upper end computing power we only have the Studio (if you want the memory) which is inordinately expensive.
Once you get to the upper end, a Studio + Studio Display combo is pretty much in the same $3k-$4k price bracket as the top-spec iMacs, and on some counts is more comparable to the $5k iMac Pro...
if you include the price of upgrading the iMac's 8Gb standard RAM to 32GB at Apple prices - but the cheap 3rd party upgrade option was always going to go away with Apple Silicon. The Studio Ultra + Studio Display works out cheaper than the $7k+ iMac Pro models with comparable processors.
Add to that, the possibility of choosing a cheaper display setup which - even if it's not 5k - may be better for your needs. I got a
pair of matching 4k+ displays for £900. For that matter, it's only because my previous system was a (reluctantly purchased) iMac that I needed to buy new displays at all.
What
has been lost is the entry level $1800 5k iMac - which was always a rather un-Apple-like bargain - although that wasn't particularly powerful CPU/GPU wise.
The Mini solution is currently under powered with too little memory and the Studio is too expensive for a non upgradable box.
The Mini range runs from $700 to $1700 for a M2 Pro with 32GB and the Studio picks that up at $2000. (Theres a $2000 Mini BTO option but buying that doesn't make sense).
Any theoretical new "large" Apple Silicon iMac is only going to offer the same range of CPU and RAM configurations at the same price differentials - and isn't going to be any more upgradeable. Actually, an iMac is
less upgradeable because you can't change the screen or the computer independently.
The Studio already has a modular SSD which
would be upgradeable if Apple chose to allow it. The maximum RAM restrictions are there for solid performance reasons - the
problem is Apple's pricing structure that charges a ridiculous premium for fairly modest RAM increments - otherwise, if RAM prices were realistic, any "power user" would max out the RAM at purchase (96 or 192GB are not huge, serious-callers only amounts of RAM in 2024) and there'd be no demand for after-market RAM upgrades. OK, so if wishes were horses... but none of that is going to change in an Apple Silicon iMac.