There are still a need for document printing at home. Granted it's just smaller in scale these days. Mine is mostly used for the kids. Like printing out things to color on, or something educational. On rare occasions I'll need to print some kinda form, for work or some kinda government form, even event tickets.
That said, I really don't know anyone that's looking to photo print at home anymore. It's just cheaper to have it done somewhere like Walgreens or Walmart.