I use it all the time and I have an iPad Air with iOS 8Frankly, I have never used the mute button on my iPad. Even for rotation lock, there are alternatives already built into iOS 8, so a physical button is not required. I could see the removing the volume buttons over time as they now have alternatives for that as well.
Less mechanical parts means less things that break and also means less opening for dust or water to get in.
In other words, it not just about thinness.
At least that's how I see it.
I agree, I rather have more features that I don't use than none I might want. I use the switch all the time on my Air and I find it useful.Posts like this annoy the crap out of me. Just because YOU don't use a feature doesn't mean there's no one else in the world that DOES. I happen to like having the switch to lock my phone. It's CONVENIENT. God forbid things be easy and functional - because THINNESS is the ONLY thing that matters.