breaking legendary stuff doesn't return all the ascendant materials you put into them. up to this day i have bought at least 15 legendary items only to break them down. just because i always have hit the weekly Mark cap or the max mark cap. so, there was never ever a reason why i would need more marks. But not having to spend an hour on the moon to farm 60-80 helium filaments: this is priceless to me! why would you even want to level up 24 legendary weapons ? 1. as soon as you have Raid gear, you don't need any other Void weapons 2. as soon as the DLC hits, the 300 attack legendaries will be underwhelming compared to the 320 attack exotics. 3. once you found your favorite weapons, you will never use the other stuff anyway