People will do menial tasks to get weapons they do not own and or want to acquire. People will not do menial tasks to use weapons they already have and or feel as if they should just be allowed to enjoy and or just to look nice. This is your crippling misunderstanding, Bungie. In grindy games, people will do not fun things so they can get new fun things. In grindy games, people will not do not fun things for something they already have (without a very specific purpose for doing so, typically new builds or new powers or new setups). Hence, I can see this being useful for mod components, but utterly useless for enhancement cores. With more modes you can do more new builds. With more enhancement cores you can... what? Masterwork useless armor? Make yourself not look like garbage? Continue to use the same weapons you're always going to favor anyway? And people would masterwork weapons... but again, they only need 1-5 weapons like that and the rest they're gonna save. Nothing new.