There are a few games that give more payouts than the others. So, it really is more profitable to bet on these games compared to normal games. These are normally games influenced by a heavy lineup and tough competition. Third factor is a money-back guarantee. The web site that one is associated ought to provide this facility so that the bettor feels secure and can get the money back when he wants to withdraw from the sites services. The final influencing factor ought to be the guidelines on the betting system. Each website has different regulations and rules that you must follow. So, before investing, one need to ensure that one can comfortably follow those rules.