And dotn forget arbiters! but remember when choosing the race people, the protoss are very very expensive. So maybe for some maps they are not the best race for others they are. Take blood bath for example. Very VERY Small. Bad expansions if you ask me. Spending massive ammounts of resources here might not be such a good idea. But on a map such as killing fields, which is damn well near impossible to deplete of resources, maybe these resource rich units will be the best. Think about it.