I love seeing Disney billboards while on my way to Disney.
I don't want to derail the thread, but I have a question... are there billboards for Disney all over Florida, or just in Orlando?
Growing up around Southwest Florida and visiting, I can say not often. It is to remind and get your dollars when you are close to to advertise the offerings in the parks that you are not visiting. The closest I saw in SWFL was at one point an billboard for Food and Wine about a decade ago.