Dude, the fun challenge is acquiring the gear and then leveling it up. It's a whole lot of extra time worth of stuff to do. To answer your question, it makes the game different by giving you goals and accomplishments to work towards so you can feel like you're always progressing. That, in a nutshell, is my favorite part of Destiny and that's mainly what keep me grinding well past the time I should be going to bed every night. If that doesn't appeal to you, then this clearly isn't your type of game, and that's not any sort of shot against you. It's just fact. If you don't enjoy the continuous grind, then there is no reason to play after level 20, save for having fun killing enemies with friends. But to come from mindless, meaningless killing in Battlefield FOR NOTHING (once you are highest level colonel with every gun in the game there is seriously nothing to do except shoot other players and work on your stupid kdr) to this, is such a sweet change of pace for me. There is a reason I do almost everything I do in this game. Hell, even farming is fun to me, and I know I'll probably need the materials I'm gathering, as well as the rep and xp I'm always earning. Sounds like we see the game differently, which is fine. But there's plenty of people who enjoy this style of game, and we greatly outweigh the people who don't. Maybe not on the forums, lol, but forums are always filled with haters and there's nothing we can do about that.