In the real world, the one Ultimate Spider-Man was supposed to take place in, heroes don't always have to die. Sometimes they do just fade away, to a life of normalcy and happiness. It was the very least Parker deserved.
Today we meet Miles Morales, a younger multiracial and multiethnic Spider-Man. Even though Morales may remind us of the Spider-Man we're used to in the more traditional Marvel universe, there are definite differences.