Man was not meant to survive on Spiderman, Wolverine and Iron Man suits alone.
I seem to remember Hasbro saying something about focusing more on their bigger name characters that sell, however I think that only works for a while and then you're in the rut of "alright, that group of 8 year olds grew up, time for the next batch of the same thing for this group of 8 year olds." I realize Marvel Legends isn't for children but a reliance on name recognition entirely will put a brand into that mindset that it IS just serving the same McDonalds hamburger to the next client that wants the same thing.