I enjoy this map but the advertisement boards being included in a paid mod is awful- I get Camodo supported you but it's not what you expect in a mod you paid for...
I think without the support of Camodo, the map wasn't build, or it was way more expensive, nothing in live is for free.
A billboard in a game(especialy in a race game) is not a problem, if that gives the dev's(or modder) a change to get some money for their hard work, is that totaly ok. It is a much better way to earn some money besides the sale price, then a pay to win model, witch ruiens a game. In real live their are also advertisment billboards along the roads, so why not in a game that tries to copy a real world driving experience.
unless im sorely mistaken with mapmaking, modding usually costs far, far less than a paid mod would give you back in return- the effort and time is obviously a factor and i appreciate that (the holloway will be paid, im not against them), but one doesn't need commissioned to be able to afford to mod the game.