I have to agree with you that Bungie knows how to build games that are immersive and trigger emotional attachment. My heart still races a bit when I hear the Halo theme as I conjure up moments of near terror from fighting through endless enemies in the single player mode or reflecting on a particularly difficult kills or custom games during multi-player. Destiny has the feel of mass effect without the excess of a story line, playability like Call of Duty but without sacrificing the emursive experience. Call of Duty is a good game.. simple and efficient, Destiny simply takes the FPS genre to another level. It is art.