To tile or not to tile

I am currently working on a kitchen and I need a budget friendly update for the back splash. So I was contemplating wallpaper, which can add allot of interest and drama.

Image via decorpad

There is also paintable wallpaper called anaglypta , that could be used as a back splash.  I think it looks amazing painted black.

image via remodelista

Now one product that I am seriously considering is the Luna Wall Flats

Image via Inhabit Living

But through my searching I came across this product which is actually ceiling tiles, but I think this gives the same look as the Luna Wall Flats.  Its extremely inexpensive and seems very easy to install.

Tiles via talissadecor

I am going to order samples of each and then it will make it easier to decide.