You don't need co-op or front of brick-and-mortar store placement.
You don't need blurbs from star authors.
If you are a traditionally published author, you need to at least set up a footprint in self-publishing. Talk to your agent and editor about this. Think in terms of non-competitive and complementary short-form work. That is platform building of the best kind.
[I'm teaching all day today, but I'd love to hear your comments. Have at it!]