Amazon/Comixology has a bunch of Marvel: "Epic Collection" graphic novels on sale for $3.99 until 12/1:
https://www.amazon.com/kindle-dbs/co...=desktop-btf-2
Most of these are meh, since "epic collection" can basically mean whatever they want it to mean, but I suppose if you're only looking for a specific arc, it might come in handy.
I used the sale to finish out my New Mutants collection, since the New Mutants Classic Volumes ran out and the "epic collections" were the only way to get the remaining issues before the horrible rebrand to X-Force.