I've always used wireless tech whenever possible since the early 2000s, when at the time it meant using a dongle to connect your mouse or keyboard wireless to your computer or laptop. On the headphone side of things, I didn't use Bluetooth one since the ones I like were to expensive until about 5 years ago.
But, since I started using Bluetooth keyboard, mouse, and headphone about 4 years ago, they have become my favorite way to connect this kind of peripherals to my my laptop when I'm use them at the office or home office. When on the go, I mainly bring with me Bluetooth headphone and mouse, the mouse is something I don't always use when I'm at the coffee shop, or bar, working or just browsing the web.
To be honest, Bluetooth peripherals are more than good enough for working, casual gaming, browsing the web, or things along those lines. Specially if you don't like looking at wires on your desk, and want a cleaner desk setup, it makes sense having any of these peripherals, specially since they have come down in price as the Bluetooth has matured, and more people use keyboards, mice, and headphones on their setups.
I don't see them becoming as cheap as their wired counterparts, but with time the price difference won't be that big, and more people will be able to get a workable Bluetooth keyboard or mouse that will be more than good enough for most use cases. Specially on the headphone and mouse category, since most people who use a laptop as their daily driver won't need to have a Bluetooth keyboard at hand, unless they want on for their office, or home office setup. Personally, that is my case, I've a Bluetooth for my hone office and my office, but when I'm any where else I just bring my Bluetooth mouse and headphone with me.
Even if I got a desktop for my any of my offices, I would look for them to have Bluetooth. I don't really want to go back to use dongles, since they take a port away and I rather have those ports available to use for other things, like USB sticks, external hard drives, charge my laptop, or monitors.
As time goes by, I see mobile tech becoming better. Which means that people will be better able to set their setups to their specific needs. Even portable monitors are becoming better and cheaper as time goes by, which is greet for those who like to work with a couple of monitors, or want to connect their smartphone to a bigger display when the task calls for it.
As someone who has rooted for mobile tech to get better, I'm somewhat happy where it is now and hopeful for its future.