there is certainly no shortage of hype surrounding this industry, but at the moment, valuations on ssys aren't so far afield, historically, from other promising technologies. what's encouraging is that this is a process that is rapidly being adopted across manufacturing platforms by some very real companies.
i am in this stock for the long term because they seem to have a few technical advantages locked up in what i consider to be a legitimate paradigm shifting industry. whether or not they exceed earnings projections over the next two or three quarters doesn't concern me all that much.
it's not the bulk of my retirement fund but more than worth a gamble imo.