Besides the Local 7-11 in the 80's, I used to take a 2 hour + bus ride to the Smithhaven Mall on Long Island to visit a small shop called Serendipity Comics. All i remember from that shop is they had a FF #1 for $300. As I got into my teen years, mid to late 80's, I started going to Port Comics in Hauppauge, NY I think. They had a subscription service and got great back issues from a source in the city. They had a quarterly 50% off sale and I would get my dad to drive my friend and I up to. I remember one sale we got there 1st to make sure we got the books we wanted. My buddy snagged an ASM 121 for $10 and I went and got Hulk #181 for $20. Those half price days were great.