Yes, because they were replaced with better, more effective versions. You dont replace your PC componants with slower worse performing parts just because they are "new". You dont replace your 20-25 goal a season striker with a wheelchair bound toddler because hes "new". Warframe has the right ideas for guns, you know what happens when they release a new gun? Exactly that a new gun comes out and nothing more. If i want to tackle any new content with my Braton Prime (that i can mod to which ever -blam!-ing elemental damage i want when i want) i can. If i want to tackle it with the new guns? Well go right ahead. We dont need "better" guns, just lots more different ones. Ditch the -blam!-ing retarded attack values and leave our guns alone. If i want to spend the next ten years using one gun, then thats how i choose to "become legend".