My first bicycle (I remember fondly) was a AMF Roadmaster, Jr. I was probably purchased (or if I know my dad was exchanged for S&H Green Stamps) around 1964 or 1965. It was green with a solid metal seat and solid rubber tires. It was, in short, indestructible. I must have ridden a million miles on NYC flagstone sidewalks.
Yes...even crappy bikes can foster happy memories.