100% effective.
My "sets" are essentially player collections in which there is an over-arching theme to those players. From time to time, Ive branched out like completing a Red Man Giants run - but even that run is complete. Ultimately, if I stray out, I stray into an additional set that Im building. Everything is within a specific goal.
While there are upsides to this approach (size, budget), it may illustrate some character issues as well.
