Honestly, I think it's because bungie is trying to evolve destiny. I really believe they're trying to make it into a better game and the one we all wanted on day 1. To do that, however, there has to be a big revamp. They made VoG weapons the top-tier, but they want to change the characteristics of all weapons from ttk on, they have to make all the best weapons that came before obsolete because they won't fit into the archetypes they're trying to evolve them into. In my opinion, it kind of sucks, it's hard to swallow, and it does seem somewhat unappreciative of the first year. I do respect what they're doing though, I can tell they're really trying to make this game the greatest and I can make a sacrifice for that. To each their own, I respect your post/opinion and agree with much of it. Wait until ttk releases and ask yourself, "if destiny were released in the condition post-ttk, would I give up everything to experience it this way from the start?" If it's a legitimately better experience, I see no harm.