It is a clear fact that any type of sports betting, one party that is bound to make money is the book maker or sports book. They achieve this goal by alteration NFL betting odds in the NFL betting lines payout and in doing so do not show a reflection of the betting odds. It is should be mentioned here, this act is neither wrongful or unlawful. It helps cover the business costs and expenses while involved in the field of online betting and gambling. The same type of act is done in all kinds of games in casinos worldwide.
Sources:Wikipedia: http://en.wikipedia.org/wiki/VigorishForbes: http://www.forbes.com/sites/davidlariviere/2014/09/19/legalization-of-sports-betting-would-be-huge-revenue-producer-for-leagues-expert-says/
Where Does the Commission Come from?
Commission is a compulsory component of all types of sports betting games and betting lines. In the betting world this commission is known as the juice, vig, or vigorish. The final recipient of this commission is the bookmaker. This is the way they earn money in their online betting business. In most of the cases this juice is only 10% of the total betting amount. Many a times this juice is displayed while bettors play with point spreads, while in other cases, like the moneyline bets, it is a hidden amount.When the bettor is playing with a points spread game, the juice is collected up front. If a bettor wants to have a winning amount of $1 he will need to place a betting amount of $1.10. The reflection of the 10% charge for the juice in the betting lines.While playing the betting lines of moneyline, this amount is not clearly reflected but it is there in all betting odds. Wagering without commission of juice is useful for the book makers or sports books.