I went through some older pictures yesterday, 2003-2005 which were my last years of highschool.
i had a 5 MP panasonic, which for some reason i though was "too much" so i shot everything at 1200x1600(~2MP)
they are all pretty much crap, but there are hundreds of them, which brings back lots of cool, though sometimes uncomfortable memories
My oldest digital photos go back to 2003. Digital memory was pretty expensive, but since it was just a whopping 3.2 MP, I still fit a lot of photos on a card. So basically, it was cheap enough to photograph a lot of stupid stuff. However, it is a pretty good photographic time line.
Had to chuckle at the age of your photos. I should have pointed out the Mt. Rainier pictures I was looking at came from July '83. There were a series of water skiing slides in the pile as well that were taken the morning after our all night HS Graduation party. So that would have been June '79. Back when my AE-1 was only a couple years old...
That said, all the pictures I take are really so that I can go back years later and remember everything about the event. For me that is all I really want from my photos.
(Mike will probably come in and laugh at the dates of my pictures, but I can take it... I do have some old Kodak Instamatic pics from around '70, any earlier than that and it was my parents taking the picture."
It's strange, but just 200 years back people wouldn't have any clue what they looked like when they were a child. Now it's so cheap to do so with digital photography people don't look at it as anything significant anymore.