Take Walt Disney World (WDW) for example. Most people have been there or Disneyland at least at some point in their lives - or have seen pictures. Think about when you first come into Main Street and walk down the sidewalks. Have you ever noticed the hitching posts? Most everyone I've ever asked say they haven't noticed them. Is that good or bad? In a way, it's good. What would cause you to notice? Knicks, scuffs, chips in paint. The good people at Disney realize just that. That's why the hitching posts are painted EVERY night. They'd rather have you NOT notice them then to notice that they're all scuffed up. That's attention to detail.
Being a Disney fan I have another good example. One of their most extraordinary exhibits is the Hall of Presidents. Anyone who's the LEAST BIT interested in the history of our great country would enjoy it. Anyway, that's where they have life size replica's of all of the U.S. Presidents on a stage where a number of them talk to you. Pretty cool - and perfectly lifelike.
We all know (most of us) that Franklin D. Roosevelt had polio. That meant that he wore braces on his legs. What I bet you don't know is that if you were to lift the pant legs on FDR in the Hall of Presidents that you would find - a complete set of braces on his legs. You can't see them otherwise. It's all about accuracy.
Attention to detail makes the difference.