People were mentioning cheap printing. I have worked in several companies that manufacture printers. My thoughts on consumer level printers in general is:

Never, ever buy a multifunctional printer. Ever. (Unless you need to take a lot of copies of physical papers on daily basis.) If a device gives and error, the manufacturer can either disable the entire device until the error is fixed, or implement a massive cross check algorithm that checks which functions would still work safely and that requires testing. And that would be expensive to implement and test. Why would any company make a difficult and expensive function that guarantees them less money in the future? So if you do not specifically need a lot of copies of physical documents, avoid multifunction devices like the plague. Buy a scanner separately if you need scanning.

Do not buy an inkjet printer unless you need to print your holiday photographs. Not only is the ink expensive, third party inks can ruin your printer. And if you do not print at least, minimum, one photo per fortnight, the nozzles may dry and you need to replace your print heads. The carriage that holds the inks is usually where the nozzles are as well.

Unless you print some official papers where colour logo is needed, do not buy a four colour laser printer. Toner is expensive and a four colour laser printer is four times more expensive than a black and white laser printer.

What should you buy?

If you mainly print documents, get a black and white laser printer. Auto Duplex is a good function. Network/Wifi connection is also pretty handy, depending on your home network infrastructure. And with laser printers it doesn't matter if you don't print a single paper for a year, the toner is still just fine. And you can easily buy cheap third party toners. You'll have the device for years and third party toners are pretty cheap if you check how many pages you can print with one toner cartridge. Less than a cent per page. This is what I use at home.

Also, if you attach it to your network, secure your network! You don't want some random dude walking past your window to start printing weird stuff just for the lulz. It's incredible how often I see available printers when I walk through the city. Should probably make a PDF with instructions how to secure your network and every time I see an unsecure printer print that document for them.

tl;dr -- If you need to print documents, get a black and white laser printer.