Despite laserdiscs being so big...you could only fit half a movie on one side. So you'd actually have to flip the disc halfway through the movie.
What's really sad, is there are actually certain DVDs where you have to do this too! Good example is Robin Hood: Prince of Thieves (the original DVD release of it, not sure if you still have to flip the disc with the special edition).
My history teacher used them in our class last year. First time I ever saw 'em. Except on Homestar Runner.
I remember begging my parents to get one in the late 70's when they first became popular. My local big funiture store that went out of business long time ago I think in 95 use to have a pretty big electronic part of the store that selled Laserdiscs. One day I saw the cover of Hollywood Hot Tubs.
I remember laserdiscs. Nowadays you see a bunch of Japanese ones mostly on eBay, especially Song of the South.