You're saying wireless is better than wired? Give me an example where wireless is more stable, faster and cheaper than the wired equivalent it replaced? Wireless is always a convenience, not an improvement over wired.
Wired audio has stagnated because it works. It serves a purpose, and it's CHEAP. We still use light bulbs, too, and how old are those?
In case you weren't aware, bluetooth butchers audio quality. Low bitrates that can't reproduce HD quality music without the help of products like aptX, and Apple couldn't even include THAT to be compatible with hundreds of speakers and headphones ALREADY on the market. Look it up --
AptX.
Wireless isn't better audio than wired audio, just more convenient (if you call needing batteries and increased failures more convenient).