Stern has made some good games. Just like Data East people like to write off their entire collection because they don't have Bally or Williams listed as manufacturer. The truth is, Stern has some hidden gems. Just about every pinball community agrees that Lord of the Rings is a worthy top 15 pinball machine. Spider-Man and Shrek/Family Guy are both pretty highly regarded as well.
Sure, there are some duds, but Stern has some good games that would be worth owning.