Often the reason for the multiples is that the originals are dead, how is that not consequences?
But who cares about the stories if they just replace characters with carbon copies after every fatality?
The Ultimate line was my first foray into modern Marvel comics all those years ago. It was great because the stories were accessible and the line in general felt tighter. It doesn't feel that way anymore with any of the titles save the Bendis ones. Since Ultimates 3, the line has moved away from tight, modern versions of Marvel characters to Hardcore versions of the characters. Since the books are still selling, I guess some people like it, but I really don't.