I'm with Sandro here. I'd quit the business if I had to wire a house in EMT. Our typical house is 4500-6500 sq ft and has 75 home runs. I can assure you it would cost much more than $500 additional to do it. Our average home is $16000 for romex, in EMT I think another $10k would be needed. But we don't do much with EMT, so I may be way off.