Yes. Yes, he should. I especially loved his part in Mackay's Black Cat series, during the tie-in to the King in Black saga, where Felicia remarked to...
For Harry, they could just have Norman/Green Goblin bust out of interdimensional limbo to torment Peter some more and try to sway Harry back to him....
'Why?' Just to see the disappointment on your corn-fed, gee-whiz face, Superman. And because a great dark voice on the edge of nothing spoke to me and said you all had to die. There is no 'Why?'