A cleverly done multiplayer has the potential to be better and more dynamic than a single player game. That said, single player campaigns are reliably better because they are simpler to put together.
I typically buy games with solid single player campaigns and ignore any multiplayer. Unique multiplayer experiences will attract my interest, especially ones like Dark Souls and Mirror's Edge which aren't run of the mill online multiplayer deathmatch lobbies, but I seldom actually play multiplayer.







