I have a Hobart 140, I love it. It does have a purge/wire feed off setting. The welding supply guy told me(as longbox said) the Hobart line was a home/small shop verison of the Miller, which is more heavy duty for daily continous work(factory). It has to do w/duty cycle mostly, the Miller is higher for continuos welding.

My \'64\'s in the Gallery
Pictures in my Photobucket
1964 C10 Custom Cab 350/700R4
1964 Suburban 350/700R4
1979 Ford F350 4x4 400/c6