In Virginia, businesses shell out roughly $1,000 annually to be included on the signs. In Tennessee, that cost is higher at $1,600

More than $6 million is pumped back annually into Virginia from the interstate logo signs, according to VDOT. In Tennessee, that number is slightly higher at $8 million.

http://www.newsadvance.com/news/state/getting-featured-on-interstate-logo-signs-is-tricky-business-with/article_8f5225d5-a0ee-53da-aca0-4125e23db957.html