It wasn't bad. I got there a little after midnight and waited with a couple of other guys until about 4:30 when a bunch of people showed up. They only had 20 (they reserved 5 for employees). The manager kept on top of it by checking periodically until 15 people were waiting so he would know who they were. He kept telling everybody else they weren't going to get one but for some reason they stuck around anyway. All in all it wasn't bad.
Congrats, do share your Sams Club experience.