I believe jjp in Lakewood was in an economic Enterprise zone that allows for several tax breaks..could be wrong, but doesn't seem entirely related to cost.
Sad to see, I always liked visiting the factory and getting my games there. Feel bad for the staff, they were always nice.
The factory in Lakewood is pretty far from the nearest airport, I'd guess at least an hour. Maybe they just have more synergies being in one place and closer to major transportation.