I was thinking about this question today as someone used our work printer for some personal stuff.
As for me, I am printing little things that I would say make it worth it. I’ve printed lens adapters for my camera for example. That’s worth a good 14 to 30 bucks per print. My most favorite photo was with an adapted lens that came from a projector. I also printed IEMs and those things are worth it. Listening to music is second to none on those things. Plus I printed the same shell but for ear protection and again the fit is perfect and sure there’s post processing to get smooth surfaces but in the end it looks like a professional made it. So I think 3d printers are worth it.
I’d say definitely. The first useful thing I printed was during the pandemic where all the paper towels you could get were those z fold ones you see in office building bathrooms. Suffice to say, most people don’t have a container at home for those types of paper towels, so I mocked one up that was like a home tissue box and printed it out. Saved myself 80+$ on making one instead of buying one on Amazon (also they’re all wall mounted and I didn’t want to do that)
Since then I’ve printed toilet paper roll holders, plant pots, catch all bowls, insulated drink holders, tie racks, jewelry racks and boxes, all manner of things I use almost every day, and I’ve learned about 3d modeling as a result (not really good yet but still) so win win.
Edit: I’d say at this point I’ve definitely printed more than how much the printer costed in terms of things I use. Printing mini figures and scenery for tabletop games alone has exceeded the cost it would have been to buy that stuff.
Yes I have an fdm and a resin printer, but they’ve both got a lot of good use and yes absolutely worth it.