eBay has been kind to me. Recently purchased issues 3, 5, 6, 9, 18, and 49 all for a decent price (my collection beforehand was just 8, 12, 15, and 24).
Oh and also I got an original number 1.
Neat. I’ve been trying to get some of the movie adaptation issues myself, but they’re always a bit out of my price range (at least as far as what I’m willing to spend on single issues).
I’ve occasionally used eBay to find some of the more obscure comics I’m after (and gotten lucky a few times), but I try avoid it as I enjoy visiting comic shops whenever I’m abroad.
Are you collecting any specific issues, story-arcs, etc. or just grabbing any orig. Marvel SW you can get your hands on?