thats hilarious that you remember what it cost you nearly 50 years ago!
It really is curious how some stuff sticks in our brains, little goofy details, yet other stuff just leaks out of our memories.....
Ive worked a fair amount looking after people with alzheimers, and its classic how the old entrenched memories stay solid much longer than the recent stuff.
very curious things our brains. Look also at how you can hear a song, and you can vividly recall all kinds of details from when you heard it back in god knows when....
I can relate to that. I have to call my younger brother to "truth check" some of my stories.