What do I not understand? The GO490 looks like a copy of the DJ20. The specks are about the same except that the GO490 has a 3hp motor whereas the DJ20 only has a 1 1/2hp motor. The GO490 is $839.25 delivered and the DJ20 is around $1660 plus $95 for the moble base for a total of $1725.

I understand that the new DJ20s are also outsourced just like the GO490s. Is the DJ20s quality that much better or what?