- The cost per page, each Omnibus contains the equivalent of 3 or 4 Marvel Masterworks, for the cost of 2 or less.
- The page size is a little bigger so the images are a little bigger than they are in a Masterworks.
- The Omnibuses include the letters pages and other other bonus materials that the Masterworks do not.
There are a couple other classic Marvel series that I want to read that have been released as part of the Masterworks series: Amazing Spider-Man and Thor. There is a Spider-Man Omnibus (possibly two) and I've been toying with the idea of getting it but now I'm leaning much more heavily (no pun intended) toward buying the Masterworks instead, one volume at a time. There is no Thor Omnibus, as of yet, and I was holding out for one but now I don't think that I will bother; I'll get the Masterworks instead.