20+ Years ?
I equate present 3D FDM printing with the 2D DOT Matrix printers of yesteryear.
Very popular and affordable for the amateur, hobbyist and small manufacturer, but for viability as a consumer product - much too finicky and fussy. It needs to be Plug & Play - plug it in, turn it on and send it print files, and occasionaly replace the cartridge. Follow the trends in R & D of the major printer companies like Canon, HP Kyocera etc. FDM does not appear to be in the cards.
So let’s have fun while it lasts, but I think 20 years is pushing it - more likely, 20 years from now, people will point and ask “what is that?” as the museum guide explains…
The snapmaker however has some advantages with it’s additional CNC routering and lasering abilities. So still a worthwhile and sound investment for the forseeable future.