Tiled Walls Everywhere I Look

It seems to me that ever since my decorating hero, Anna Dorfman tiled her kitchen walls a few months ago, I'm seeing tiled walls everywhere. But, you know, now that I drive a Nissan Altima I see those everywhere I look, too, so I don't know if it really is a popular trend or if maybe I'm just more aware of it. Anyway, I gathered up some of my favorite tiled rooms I've come across for inspiration. I'm trying to get up the courage to do this.

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I saw a lot of tiled walls in the Ikea showroom, too. If our house doesn't sell in the next couple of months, maybe I could talk Rand into letting me replace our stainless steel backsplash with white subway tile. I would love a whole tiled wall, especially in my kitchen or bathroom, but I need more tiling experience first. 

What do you think about the tiled walls trend? Have you ever tiled before?