Every year I get to do the Robert Hale & Co. Catalog, a 3000+ database turned into a vehicle for drumming up business, plus advertising.
On the upside, I get to create a cover. The downside, the resources are scarce. But then, that is not an uncommon situation in the world of graphic designers.
In the end, it is just plain fun to make a cover or two, to show off to the boss.