How expensive is the inverter? I have a 2300 watt generator I got from home depot. Its husky brand with a suburu motor. its compact, fairly quiet, and us able to run my mytee spyder extractor which is an amp hog. If you don't live in ca, I believe they around 350_$400 . Sadly if you live in ca you get to pay an additional $125 for the smog controls. I hate ca!