After four years living here, I finally made it to the Las Vegas sign. I'm glad they have a parking lot here, which makes it easier to stop by and take pics. It's such an iconic part of this town that everyone should stop by whether or not they live here or are just visiting.
Yes, it will be crowded. If you're going to stand in line to take you picture with the sign make sure you make it quick. Take two or three pics then move on. I had the misfortune of being behind a group of girls who didn't think twice about taking their time and posing for at least a dozen pics. Not even a little heckling made them move any faster.
So, show a little respect for others in line. Be quick. Admire an icon. Soak it all in. And, move on.