For now, and I think for the next several years at least, if you can afford to purchase and drive a headset which comfortably replaces multiple monitors, you likely already have the space and resources to use multiple monitors already. I spared no expense on a fully kitted-out home office and didn't spend anywhere near $100k USD.
Yeah, but if you've got the choice, would you want to? I can have a dedicated room with lots of black boxes and wires that's a pain to clean and reconfigure, and which I have to work in, or I can not. Frankly I'd trade some resolution for that.