I don't. 3 x 4k monitors is perfect for me, and they are much higher quality than the pixel density and clarity that vision pro can provide. If you need more, don't mind the drop in clarity or wearing a heavy headset 12 hours a day, then vision pro is great.
That’s not true with the Vision Pro able to do ~5K picture quality natively and downsample 5K for 16:9/10 4K when mirroring with pixel density absolutely superior than any large 4K monitor that ever existed. You don’t seem to understand PPI or the importance of pixel density for spatial computing hardware (XR headsets need to have higher pixel density than 4K monitors to come close to picture quality on pa) if you believe that–4K loses its high PPI ability after 24” after all backed by HCI computer science!
The Vision Pro’s clarity is higher than an overwhelming majority of 4K monitors as well accordingly (32”+ 4K is merely passable and not great for prosumer use whatsoever)–with far superior HDR performance than any 5K2k monitor (5K2K) that has existed and an overwhelming majority of 4K monitors that have existed to date at that.
The 4K monitors that can decently somewhat rival it but nonetheless prosumer monitors like the Asus PA32UCG that I own (Dolby Vision + HLG HDR with 1600 peak nits and 1000 sustained nits) are not cheap options: The PA32UCG cost $5000 MSRP (now $3000 these days).
Also note that the Vision Pro is able to do 21:9/32:9 modes as well with 2.0 that will have an advantage of being far more versatile, portable, ergonomic, and private which certainly has value to various kinds of computer users.
The Vision Pro’s pixel density is nonetheless only surpassed by one other headset in the entire world that costs more, doesn’t support HDR, nor even a standalone headset (Varjo).
Heavy is relative and subjective: The Vision Pro is lighter than existing prosumer headsets that have released before it like the Quest Pro.
It’s also not heavier than several mainstream headsets like the Valve Index and so on. It’s heavier than most standalone headsets that aren’t even in its class (i.e. Non-Pro Quest headsets from Meta). There’s trade-offs and varies person-to-person; if you say the Vision Pro is heavy, than no standalone prosumer headset is light enough to your standard.