Totally great call on the colors on #38! I ranked the new ones first and then read your post, so we definitely agree :)
So, my wife has another design request for #38 - can you add a carnival lightbulb-style arrow that goes partially around the outside of the sign? Start the tail arrow so it comes out from the right side of the top slogan banner and wrap it around the top right corner bend, bring it around the right side, then wrap it around the bottom right corner and then the arrow head comes to the left bottom corner end. We think that having the arrow yellow might be a good color.
Here are a couple of links from vintage Las Vegas signs to give you an idea:
http://www.flickr.com/photos/pinksherbet/3105485515/ (but she would like the arrow thicker than the one in this picture)
http://www.facebook.com/ReclaimedEclectica (the profile picture shows the thickness and proportion of the arrow)
Thanks again!
Jason