Billboards are shared: every advertiser holds a slice of the road proportional to what they have spent, and the client draws one each time a board comes into view. The blimp and the three banner planes are exclusive — one holder each, 30 days at a time.
Roster version fallback
Leaderboard Buy a boardUnsold — take it.
Unsold — take it.
Unsold — take it.
Unsold — take it.
No billboards sold yet — the road is running house boards until someone takes one. Be the first, from $5.