Even though things may be old, they still serve some basic functions. My Mac Classic runs Eudora and collects email just as well as any Pentium III behemoth does, albeit slower. It also runs an ancient version of Aldus PageMaker. I hear stories of people remote controlling the lights in their homes with an Apple IIe. You can retrieve Internet email in DOS and browse the Internet on a 386 .
Old computers make pretty good print servers too.
Eventually, I gave my two 386s and the 486 to my friend who matched its parts with other computers to make more well equipped computers. He donated these computers to some Indonesian. So these Indonesians have computers that are obsolete. But at least, they're learning something about computers. They're not being left entirely out.