I love Marvel Champions, but I can't keep up. And I like playing other games as well. Those living card games will be the death of me. So I've decided to stay away from the big box expansions for a while, and just buy two or three hero packs every cycle. The joy for me is in how different the heroes play anyway. I can set them against the bosses I've got.
I didn't buy The Galaxy's Most Wanted, but I did get me those: