Anihrim allready has Wondercon. And yes San Diego is ideal for a con that size. The location lends itself to dining and more choices for accomidations within walking distance than you can count.
Plus why screw with a good thing? I remember when u could buy tickets at the door. Now its so succsessfull you cant.
Well regardless they will do what they want and the masses will follow. It is Comic Con after all