10 years ago it was really just hobbyists, but there's all sorts of businesses popping up as 3D print farms for hire. They get a bunch of business for creating custom tooling jigs, short run products, and all sorts of etsy shit. And there's a ton of real practical engineering-grade peices that are built using FDM 3D printing, not to mention that basically every tooth implant is SLA 3D printed now because of the speed, low cost, and minimal post processing required.
Literally Bambu's A1 mini is the sweet spot for this with a 180mm^3 (7 in^3) build volume. You can get just the printer for $200, or the combo with the 4 filament switcher for multi material printing for $350. I've got a high end Bambu printer for almost a couple years now, and it's been more of an appliance than a tool. I made model or get file, and printer makes it. Simple as. The A1 printers are every bit as fast as the high end printers, they just don't have an enclosure so they aren't really suited to printing engineering materials. But it'll print PLA, PETG, TPU, and probably even ASA with a $20 tent enclosure.