People would probably say the same about the AT one
Either way, I'd consider the lack of AT support to be a far more pertinent problem.
There seems to be quite a few people who reckon the XT is nicer to type on than the AT.
Those people who believe the PC/XT 83-key Model F is nicer are those who prefer notchy, clicky, very loud keyboards. There's nothing wrong with that. I know that the internals of the 83-key and 84-key Model F keyboards look similar, but I have typed on enough of each to realize that there are real differences that can't be attributed to age, storage conditions, or wear.
The key action on an 84-key Model F in good condition is smoother than an 83-key in comparable condition. The layout and differences in scan codes, etc. have already been beat to death.
As far as the lack of support for the AT, who gives a rip? Those of us who are lucky enough to have one (or several) 84-key AT keyboards understand why many of the Japanese and Korean collectors shell out BIG bucks for ones they can find in good condition.
Although it technically does not have mechanical key switches, no other keyboard comes close to the glorious mechanical action of the AT's key presses. Sandy's site, translated into English, describes the AT keystrokes as "euphoric". The 84-key AT is enjoybale to type on, but I personally wouldn't go that far
As much as I love my AT keyboards, I acknowledge they are not perfect. The single most annoying thing is the long and stiff (um, I guess firm would be a better choice of words) space bar. Whenver I resume typing on my AT keyboard after using any other keyboard, this fact is painfully apparent.
As far as I'm concerned we Model F fans, (yes, I include you 83-key PC/XT people too) are a sub-cult or off-shoot from the larger body of geekhacks.