Different priorities. People buying these are looking for good specs in color reproduction, contrast (as far as is possible without FALD backlighting), and perhaps most importantly consistent QC.
If you look at reviews for just about any model of monitor released in the past 5-6 years QC has been atrocious, with dead pixels, backlight bleed, and other odd issues being commonplace, making it a challenge to get a unit that's good all around. This has been especially true for the display that this is most directly replacing (LG Ultrafine 5k).
Nobody is buying this monitor for contrast, it has about the worst contrast available at the price point. It's failure to actually serve this priority at all genuinely makes me wonder what the target audience is.
Show me a higher/same resolution display with a higher refresh rate. I'd genuinely curious. I've been searching for a new monitor for a few weeks and can't find anything with 4K and more than 60Hz refresh rate.
As the other comment pointed out, that is not an apples to apples comparison. The monitor you linked is a UHD one (3840 x 2160 pixels, around 8.3 megapixels) with a pixel density of ~200 ppi. The display showcased by Apple has a resolution of 5K (5120 x 2880 pixels, around 14.75 megapixels) with a pixel density of 217 ppi. Also, based on my experiences with LG gaming monitors I would assume that the Apple display also has a significantly better color accuracy.
If you would have taken a second to look at the specs and search for actually comparable products you would find that there are, at least to my knowledge, no displays with the same resolution and higher refresh rates. This makes sense because 5k@60Hz already has incredibly high bandwidth requirements.
The best actually comparable product is an LG UltraFine 5K which comes in at 1,499€ msrp which is 246€ cheaper than Apple's Studio Display at 1,745€ msrp. Oh, and to no ones surprise, it also has a 60 Hz refresh rate.
So to answer your initial question: Yes, people do spend that kind of money on displays with "only" 60Hz.
