It's sad because human beings are losing their jobs, which always sucks. It also sucks because this is a big market player, and them going under may hamper investor confidence in future 3D-printing ventures or give consumers the impression that consumer 3D printing is dead. Additionally, if they go under it would mean that there are suddenly lots of schools and libraries equipped with makerbot machines who are no longer capable of getting support or replacement parts, which would also serve to dampen public adoption. Finally, it's sad because makerbot had so much potential, and although it's been a long time coming and they completely brought it upon themselves it still sucks to watch it end up like this.