Re: Home 3D printing...
That's a well thought out commentary. :)
The FDM printers (like mine)... yeah, useful for some stuff, but they're definitely not where I'd them to be either. The current generation of "slicer" software - which turns physical models into actions for the printer to perform - are very limited as well (eg can't easily create density gradients in a part to adjust the physical characteristics of it in different areas). In part I think it's due to the primitive nature of the printers so far... but also it's just the software needs more time to mature and be adapted to more use-cases.
The non-bureau stereo-lithographic printers available do seem to have the quality/fine-detail aspect sorted... but the (toxic) materials they use really limit the products they can be used for. eg I wouldn't be making something with them that's for long-term skin contact.