Spidey has been my primary collecting interest since I started collecting in '86 (20 years this month!). I have every issue from 35 - present, except 49, and then a half-dozen copies below that. I used to have a ton of dupes, but as many have probably noticed, they've been leaking out on the Marketplace over time. I'm down to the HG dupes now.
My VF 17 is the earliest. However, rather than filling the remaining holes, I've spent the last two years slowly upgrading books from 150-350, which were mostly purchased when I was younger and cared less for grade. I've had to replace an impressive amount. Its not far off to say that I've essentially recollected 150-350.
No scans right now, but I'm most proud of my little pedigree run from 58-64, which includes a Green River (58), a Diamond Run (59), a Winnipeg (60), a Northland (63) and an Ohio (64). Not ultra high grade books, but happy little 9.0s and 9.2s. Anyone got a spare pedigreed 61 or 62? =)
I hope to finish the year with the 150-350 being 10-15 books from being wrapped up as I'm real anxious to move down to 100-150.