Wow, the books some of you have are amazing (pardon the very bad pun)!
I've never thought of completing a run of Amazing Spider-Man, but now I'm thinking of just getting certain key issues. I have Amazing Fantasy #15 (it's in rough shape, but it's the holy grail of my collection) and that's about it for early issues.
I just bought Amazing Spider-Man #408 (white cover variant) along with Sensational Spider-Man #1 (white cover variant)....now I'm trying to search for the other two to complete the set...but this thread has me thinking I should hunt for older issues as well (Amazing Spider-Man #1 would be awesome to have).