Who cares? I want my plastic to melt at 105C. I want it to melt at just above room temperature.
I can make molds. Anything I can think up to print I can turn into a mold for metal. With a furnace and some wax I can cast iron.
9L+ diesel engines are still cast. If your bed as large enough you could 3D print yourself a small 2 stroke engine, check for fitup and then build yourself an entire engine from scratch.
"Die Cast" used to be a marker of quality. With a 3D printer at home you can make anything the average machine shop could have made during the industrial revolution.
And because you can do it in 3D with cheap plastic first you can reduce costs. You think a bad 3D print job is expensive? Imagine screwing up a mold design for a 12L engine.