Reportedly the pay-to-play (PtP) concept is to provide for good servers and enhanced gaming content and play. In almost every case this involves a huge gaming world with which you travel from one server section to another via some artificial in game transportation like “taking a boat to another world”, or “catching a shuttle”, etc.. These all add to the gamer concept of being in a huge world. This is the aspect that most other free servers such as the long standing Battlenet® and GameSpy servers don’t have to deal with. In most cases the free servers provide for map play where the worlds are small and the amount of people on any given map are small in comparison.