When I told my daughters' that when I was a kid, we only had 3 channels and that the tv went off the air at a certain time at night (1:00?), they couldn't believe it.
I too had many 8 tracks from the 70's. I had a garage sale in the early 90's sometime and just threw the 8 tracks along with the case in the sale. I was shocked when some trucker came by and bought the whole thing.
You never know.
As far as reel to reel, I have those as well; my wedding movies, my kids as babies, and the one I really cherish from 1939/40 or so, a brief 3 or 4 minutes of my parent's engagement party.
I had all the reel-to-reels put on DVD. I paid a lot, but it was sure worth it. Besides, try finding a movie projector these days. (What's a movie projector you say?
TIS