West Highland White Terriers? Look Here If You Know Anything About Them Please.?

So i’m thinking about getting a west highland white terrier. While looking through pictures it seems like there’s a slight difference between some of the pictures I’ve found. One looks a bit larger and more like a run around play dog. The other looks like an inside dog who stays inside. Here are the links to the pictures. http://static.desktopnexus.com/wallpaper…
^ run around play doghttp://www.gopetsamerica.com/west-highla…
^ stay inside pampered dog
I was just wondering if there’s a slight difference in the breeding, grooming, or just looks. Thanks in advance and if I confused anyone..please let me know 🙂