So here that list is!
In his latest article for IGN, William Bibbiani presents his picks for film franchises that never took a major dip in quality, including "Final Destination," "Tremors" and only one of the long-lasting slasher series. Some of these sequels or prequels may be better than others, but they're all pretty darned entertaining, so you don't have to be ashamed of liking the whole series!
Read: William Bibbiani Presents "Horror Movie Franchises That Never Stopped Being Entertaining"
Top Photo: New Line Cinema