Comic book historian Michael Barrier notes that by the early 1950s, Dell seemed to be giving more emphasis to subscription sales (promoted via premium giveaways as part of the Dell Comics Club), which necessitated stable series instead of one-shots.
Buku komik sejarawan Michael Barrier catatan awal tahun 1950-an Dell tampaknya memberikan penekanan lebih untuk berlangganan penjualan (dipromosikan melalui premi giveaways sebagai bagian dari Dell Komik Club), yang seri necessitated stabil daripada satu-menerus.