Although we rarely notice the effects that time can have on us until we look at old pictures, that doesn't necessarily hold as true with the objects around us.
Sure, the sands of time contribute their own little erosion of these things in a similarly gradual way, but it's much easier to notice how much a thing we use all the time has changed than it is to notice how we've changed.
Still, even if we acknowledge that an old car didn't always have a big, rusty hole in it, it can still be pretty striking to see what it was supposed to look like.
And we'll only have that luxury with a few of the items we're about to see.