The elements of the game just kind of perfectly combine for me. I've played tons of other MMO games and these are the things that turn me off of them: -getting to endgame takes hundreds of hours -character crafting is extremely complex and unforgiving -gear and loadout options are complex and unforgiving -amount of content is overwhelming Neverwinter Online, DC Universe, Elder Scrolls Online, Warframe... they all fall under these issues. I don't have the time to learn builds and carefully craft my skills and stats to a specific playstyle that I'll be locked into. Destiny shoots you to endgame pretty quickly and let's you play. Other games "prepare" you for endgame by forcing you to spend months slogging through levels, gaining a new skill every so often that may or may not even be useful. tl;dr: I can get satisfaction from playing Destiny without investing an exorbitant portion of my free time in it.