Gets my vote. More weapon upgrades and customising the better. It would be great if you could somehow pick the weapon weapon perks you want from the available pool after a suitable amount (probably a lot) of grinding. The majority of purple items I don't want and have no interest in owning, but if I could put the attributes and perks on them that I want - that would be something worth putting serious time into. And if Bungie read this I'll tell you something you already know. Serious time = addiction and $$$$$