Some observations that I didn't see in the other comments:
- Home 3D printing is often more of a hobby than a traditional prototyping or engineering discipline. People view it as a skill to have, and a fun use of free time. Note how the cheapest and most finicky ones are popular; they can be made to work well through careful operation, troubleshooting, procedures, customization etc. They are not set-and-forget, and I think the userbase likes that.
- Home 3D printer parts (the motors, frames, electronics etc) are almost exclusively sourced from China. We live in an AliBaba world; that wasn't always the case.
- Home 3D printing is often more of a hobby than a traditional prototyping or engineering discipline. People view it as a skill to have, and a fun use of free time. Note how the cheapest and most finicky ones are popular; they can be made to work well through careful operation, troubleshooting, procedures, customization etc. They are not set-and-forget, and I think the userbase likes that.
- Home 3D printer parts (the motors, frames, electronics etc) are almost exclusively sourced from China. We live in an AliBaba world; that wasn't always the case.