As of now you are restricted to only one exotic armor to be equipped. What if there was another way to gain more exotic armor? I had a idea which would be great for gaining more if this is added in a weekly update. My idea was if there were only four armor slots there were only four ways to gain one armor piece each time. If you buy a exotic with strange coins from Xur that would be one way but you cannot buy and equipped another from Xur. You have to get another from a Crucible match and you can equipped that. If you got a exotic engram you can equipped that one but if you receive another exotic engram you cannot equipped that. Finally, another way to buy a exotic by maybe saving up one hundred motes of light or some kind of currency to buy your last exotic armor slot. So, you can only get one armor spot filled by completing each things once. Once again, this would give us, the players, a challenge to strive for and give us more of a opportunity.