Not so much in agreement with the first suggestion but the second one really floats my boat. I just did a 10 run stint with no key to show for it. I'm not demanding one but damn, I've had a lot of people drop left and right; at the first wipe (these things happen...cabal with solar burn anyone?) or even because they don't like the strike (especially at the first sight of taken). I think after 10 strikes you should reasonably expect to get a key. So in short, Yes, you should be rewarded for keeping the queue running in the heroic playlist. P.S. I'm beginning to not trust Bungie so I also would suggest some sort of icon showing your streak run with the percentage. I don't think you should stop what you are doing to check your character inventory to see if you have a buff (This applies to 3oC as well).