Photo inkjet printers privide home printing option to photo enthusiasts. 

The best photo inkjet printers print great photos and you may need one if you take lots of photo prints, and don't want to depend upon outside print services all the time. Besides, these services also have requirements for print volume and image sizes. 

You can buy dye-ink using portable printers to make postcard sized-prints.

The best photo inkjet printer: Epson SureColor P600 (lip-up color LCD touchscreen for faster setup and maintenance, great print quality)

The best affordable photo inkjet printer: Canon Pixma Pro-100 (uses dye inks, so photos may fade over time)

The second best photo inkjet printer: Canon Pixma Pro-10 (pricey, quality not same as top printer model)