It could be stuff like Force Works #1, Spider-Man Chapter One #1 and other stuff you couldn't pay me to download...
Sure, there could be...700 of those? Think about that for a minute.
They include All New X-Men, Avengers, Avengers Arena, Captain America, Cable And X-Force, Deadpool, Fantastic Four, FF, Indestructible Hulk, Iron Man, Point One, Morbius, New Avengers, Savage Wolverine, Superior Spider-Man, Thor God Of Thunder, Thunderbolts, Uncanny Avengers, Uncanny X-Force, X-Men Legacy, Young Avengers and A Plus X from Marvel NOW!, but also most every major series and volume ever published by Marvel through their history. Oh and A Babies Vs X-Babies.