The technology was as mobile as the person who understood it
Only as long as the technology was lite, using machines made of wood and other natural materials a craftsman could assemble. The colonists and later Americans did develop foundries and metal-working, but it took time to build an industrial infrastructure. It wasn't as quick and easy as you describe.
http://www.nps.gov/spar/upload/Tho%20Blanchard%20bulletin%201206%20A.doc
I suppose the first thing to do would be to choose some dates for comparison, say 1850 and 2000...
The Blanchard story is interesting, but more a story of an individual craftsman's ingeniosity than the mobility of technology.
Look at this house that Bronson Alcott lived in in Concord, for example. And he was broke most of the time.