Social Gaming vs. Single player Gaming

I myself prefer to play social games, i find it way more intriguing to have to rely upon others to get some things in the game finished, to me it adds more to the games content and more of a challenge getting the right players skilled and experienced enough to finished what you started. At the same time though i also think Single player games can be rewarding, but it also has the drawback of seeming like there is no challenge, and if you do run into trouble within the game you can't contact another player in-game and get information, you would have to look at a strategy guide, or find someone in real life that also plays the game and has gotten past the part your stuck on.