Not dying is a negative. Being on Paradise Earth will be great for the first hundred years, then what? I went to one semester of school on the north end of the island of Oahu in Hawaii, and when I saw it I told my sister, "I'm NEVER gonna get tired of this place!"
Well, guess what? At the end of the semester I was ready to come home. There was just so many luaus and scuba or snorkling outings after class you can take, then it gets old. Finish classes, go back to the dorm, change into your bathing suit, catch the bus and take your diving stuff to Shark's Cove. You see the same fish, walk on the beach. On weekends you go to Honolulu, visit the same stores. Not a bad life for awhile, but two hundred, three hundred, eight hundred, two thousand years? You visit the Alps, India, Jerusalem, Spain. After awhile it's going to get old.
Anyone remember the story of the teenager who dies. In the afterlife this old couple greets him, welcomes him to heaven, plays Scrabble with him, feeds him home cooked meals and shows him slides of their vacations. Finally he's had enough of them and tells his guide he doesn't like it in heaven. He wants to go to hell! His guide laughs and tells him it is HELL! But, the teenager says, the old folks he lived with told him it was heaven. His guide laughs again and says, "It is heaven...for them!"
The apostle John tells the saints of his day that it does not yet appear what we shall be in the resurrection, but that when we see God, "we shall be like Him, for we shall see Him as He is." (1 John 3:2) Only by progressing can man be happy. We must always be advancing by various stages or degrees for there to be fulfillment. The Jews and the early Christians understood that. The GB never has. That's why their eschatology is so sterile. Stilted.
Even God doesn't stand still. He lives to create.