Why not more wireless connections?

I have experience with live sound reinforcement, and wireless mics have never been as reliable and foolproof as wired. As well, my KEF LS50 first generation work flawlessly, every time I listen to them. I have read many forum postings about the wireless versions having glitches, dropouts, etc. I like interchanging speaker cables as a hobbyist, as well. Cheers-

@mahgister, @cleeds, @ghdprentice 

Thanks for you responces! Much appreciated. Makes sense what you've all said. But wait, don't people wirelessly stream Hi-Def files? Just saying. 

I dont stream and never will...I dont need to anyway with my 10,000 files...

But wait, don't people wirelessly stream Hi-Def files? Just saying. 

bzawa 

... don't people wirelessly stream Hi-Def files? ...

Yes, some do.

What do you mean? What about AirPlay or other streaming over WiFi? I own both wired and wireless cans.