Not knowing exatly what you want makes this a little harder...
I have seen basic "OPEN" neons and other like signs in Sam's Club for about $30.00. There is also a neon light store (I assume thats what it is because they have more neon than I have ever seen in the windows!) that I drive past nearly every day. I can go check out what they have and what shipping is on them if you like.
Another place to check is Spencer's gifts, I seem to recall them carrying some as well.
“I'm not drunk, I'm from Wisconsin.”
We have been out drinking your state since 1848!