I will be playing Destiny for ten years. I'm an old guy with teenage boys that played Halo in their diapers. I still only play Halo, though they've moved on to LOL for their serious gaming. The learning curve is too great and the time investment too large for me to have multiple games that I am good enough at to enjoy. I sure do love the aim-down-the-site mechanic and the damage numbers and the confusion effects they brought in from other shooters. It's like Bungie brought all the features I like into Destiny, so why do I need another?