I can think of a few mundane things I could print on occasion (notes, websites, pictures), and laser printers are temptingly cheap.
How have you used a printer in your home or office?
Is there a particular usage that is valuable to you which you might recommend to others?
I’d guess we print something every week, sometimes more frequently. Printing 2-up duplex for the most part has saved a lot of paper. Replaced the toner for the second time in feb ‘22 ( the printer tells me) - with an off brand cartridge; print quality noticeably but not disastrously worse, but the cartridge was £30 rather than £130. Amazon Basics 80gsm paper better and cheaper than the HP or Canon versions.
After a few runs to a FedEx Office where you can send a document to be retrieved and printed with a code at a terminal attached to a copier, considering the value of time and the cost of those prints per pages, ~$125 is a no brainer for something that will last 5-10 years at least. Comes out to $20-$30/year with some supplies in there (paper, toner).
Primarily for printing mailing labels to attach to packages.
Sometimes to print forms that need to be submitted in paper.
I print a copy for my filing cabinet rather than store them on disk (or online).