I have started thinking recently of getting a truck that it equiped with LED marketing signs; however, I have never ever seen one live before and I am not sure if companies would actually pay good money to get their ads viewed on this, which I personally think is much better than regular non-portable out-door advertising since you can move the truck to chase after higher traffic area and rush hours during the day to maximise your view rate.
Here is a youtube link that shows something very similar to what I am looking for:
What do you guys think? Is this a hard business like the indoor led advertising? Or is it a good business like the regular out door billboard advertising?