No Peter Parker would signify the end for me.
Exactly the way I felt when Marvel killed Steve Rogers.
I knew he'd be back....That made me even angrier.
That was the month I quit buying comics. Then, a couple years later, Steve is back (of course). I felt like I had been screwed either way.
Yes, this happens all the time. But it doesn't mean I have to accept it or buy it.
I was trying to avoid posting on this topic, but this answer get to me since I've felt this way. To me, the death of a character isn't necessarily a deal-breaker or a source of anger. What DOES
rattle my cage is when your main reason for death is for a marketing ploy and you try to pass it off as a brilliant story idea.
I also suspect that Ultimate Perter will just retire and that the "death" will just be people believing that he died.