Oh man, do I remember those days. Don't forget, "Richard's Bicycle Book", by Richard Ballantine, with a cover price of $1.95. I've still got mine.
As I mentioned in another thread, I'm a headlight weenie. I just "upgraded", if that is the correct word, from a Planet Bike blaze, to a Busch and Muller Ixon IQ. Yep, expensive, but I'm riding well into the evening now, and I consider it money well spent. Not that the Blaze was a bad light at all, but this just has,,,, More Power!
Best feature: It's regulated, so it doesn't get dimmer as the batteries run down. All self-contained, no battery bag. I can't explain it logically, but battery bags drive me nuts.
Holy u-know-what!
Looking at those, I'm amazed that in the area where I grew up, in the early 60's. you were lucky and damn glad to get a hand-me-down bicycle from an older friend or relative.
That one kid, the one with the Schwinn Lemon Peeler, was the envy of everyone.
Sorry, had to digress a little there.