wow is not limited to learning only 3 skills you have 2 primary and 3 secondary's equaling out to 5 skills and once your done with one of the primary's you can switch it for another. wow isnt as simple minded as you think the game goes as deep as people using spread sheets to figure out what gear to get to maximize dps and so on. icc 10 and 25 is such a coordination based raid that not anyone can hop on and o well. the fundamentals of the game are simple yes that is why it is popular, but it has a lot of hard core stuff to satisfy the hardcore fans as well. that is why wow is so popular it is so flexible in the range of skill level needed and enjoyment you can get out of it, and once you think raiding is to easy, go and hop into arena and tell me that is easy, because it isnt. wow is simply popular due to its advertising the appeal to the number of players, and the diversity of skill needed to play the game as it can entertain any gamer casual or hard core. and rune scape is crap imo.