Apple’s viewpoint has already been established. To them the 24 iMac fits into their research and view of the marketplace. A bigger screen iMac evidently doesn’t or else it would be here, and it isn’t.
I'd rather say apple is not researching the market but more intends to shape/bend it to their needs.
I've been using iMacs since they released the first one with intel cpu. the iMac experience is absolutely stellar compared to anything else. yes, the mini is capable device, but without a proper apple-made display it's just meh. I spent almost 20 years with monitors w/o a single button on them, no menus, no quirky navigation, nothing. that was replaced by F1 and F2 on the keyboard. regardless what kind of display you pair with the Mac, it won't be as natural to use as the apple made ones.
now if I am dissatisfied with the iPad-pro-on-a-stand design, I can get a Mac mini (which is a great device) and a studio display (which already has a fkn computer inside) and costs about 2 as much as the computer itself.
yes, I know, it will probably outlast the mini, if that damn hidden computer with all the same components and tech in the inside won't break. the 27" retina iMacs we have are still good, still supported, they came for about $1800 a piece.
now they clearly lag behind the m-series devices, but they have almost the same visual experience as the studio display. yet somehow apple managed to make the SD almost as expensive as them. the $200 difference wouldn't be enough to cover the CPU and the memory alone.
people usually compare the SD to the 27" TBD, which was absolutely superior to this vanity item:
it had ethernet, a bunch of usb ports and thunderbolt passthrough.
somehow those 2 products, the 27" iMac and the 27" TBD could happily coexist on the market, as each served a different purpose.
with the external power supply apple essentially crippled the current iMac range - except of one thing: the headphone connector is finally on the side and not on the backside. niche thing, but a good decision. and otherwise they did not have enough thickness to install it anyway.
the only thing apple would've done is to take the guts of a Mac mini and slap I into the SD. it already has the thickness to hide the logic board and the power supply. I'd buy one of those within a heartbeat.