VtM absolutely requires a good group in order to have a good game, IMO. You can get by with a mediocre roleplaying group and still have fun playing something like D&D, or Pathfinder or LANCER, I think, but not so with WOD games. Roleplay IS the game.

That kind of group is hard to find, in my experience, unless you manage to hunt down an existing VTM game and convince them to let you join.