The death of Gwen Stacy is, to me, the greatest tragedy in comics. During the clone conspiracy, I was really expecting Gwen to be "resurrected" permanently. However, we know what happened. I noticed these statements by Spider-man in Clone Conspiracy 5: "Villains get to come back." And, about Gwen: "You deserved better than this, Gwen Stacy. Better than me."
Good people deserve to come back much more than bad people. Gwen was a good person. To me, it does not make sense to "tease us" since the 1st clone saga about Gwen Stacy being revived and then get rid of her. It's like repeating the tragedy over and over again. Peter was going to admit he felt Gwen was real before she died. You can tell they both desired to rekindle the love they had toward each other.
I hope when and if they do something like this again, that Gwen is permanently revived. This has already been done three times (3 clone sagas).