Anytime this topic comes up, my usual response is "You folks have not seen enough bad movies."
Seriously, are we just talking recent big-budget disappointments, or are we talking serious Z-level schlock? Because no matter what one thinks of some would-be summer blockbuster, in what universe are the likes of NEMESIS or THE FIFTH ELEMENT worse than, say, THE CREEPING TERROR or DRACULA VS. FRANKENSTEIN or GALAXINA or THE HOWLING 2: YOUR SISTER IS A WEREWOLF . . . ?
Blockbuster shelves once sagged beneath the weight of dreadful straight-to-video junk that make most of the films cited above seem like masterpieces by comparison. Those of us who survived the likes of HIGHLANDER 2 and JUNGLE WOMAN laugh in mockery.
(Which reminds me, where is my DVD of BRIDE OF THE GORILLA?)